Grotech Element I - Iodine
The solution for a rapid increase in iodine levels. A wide variety of trace elements are needed in the saltwater aquarium to achieve optimal growth of corals. For the sp...
The solution for a rapid increase in iodine levels.
A wide variety of trace elements are needed in the saltwater aquarium to achieve optimal growth of corals.
For the specific increase of single elements, we recommend using the solutions of the GROTECH ELEMENT series.
First, the actual content rsp. need must be determined using an appropriate measurement method. e.g. ICP-OES
For the subsequent permanent supply, we recommend using the GROTECH ABC system.
Dosage:
1 ml Element Iod increases the iodine content by 100 µg/l in 100 l of water.

Do you want to...
Brand
Stock status of products
Product is in stock
You can see this on the product page, above the price of the product. Here you will always find the most current stock status of the product. If your order consists entirely of products that are available from stock, your order will be packed and shipped immediately.Pick up stock product
You must place the order online and choose pick up. Your order will then be prepared for you. As soon as it is ready to be picked up, you will receive a notification by e-mail and/or SMS.A pick-up order placed before 14:00 is usually ready to be picked up the same day.
Shipping costs to other EU countries
Country | Envelope (max. 2 kg) | Parcel (max. 30 kg) | Pallet (max. 500 kg) | Free shipping above |
---|---|---|---|---|
Afghanistan | Price on request | € 79.00 | Price on request | € 2000 |
Albania | Price on request | € 48.00 | Price on request | € 1000 |
Algeria | Price on request | € 69.00 | Price on request | € 1500 |
Andorra | Price on request | € 49.00 | Price on request | € 2000 |
Angola | Price on request | € 109.00 | Price on request | No free shipping |
Anguilla | Price on request | € 139.00 | Price on request | No free shipping |
Argentina | Price on request | € 69.00 | Price on request | No free shipping |
Armenia | Price on request | € 69.00 | Price on request | No free shipping |
Aruba | Price on request | € 59.99 | Price on request | No free shipping |
Australia | € 12.99 | € 89.00 | € 12.99 | No free shipping |
Austria | Price on request | € 20.99 | Price on request | No free shipping |
Azerbaijan | Price on request | € 129.00 | Price on request | No free shipping |
Bangladesh | Price on request | € 76.76 | Price on request | No free shipping |
Belarus | Price on request | € 29.99 | Price on request | No free shipping |
Belgie | € 7.95 | € 7.95 | € 75.00 | € 50.00 |
Brazil | Price on request | € 89.00 | Price on request | No free shipping |
Bulgaria | Price on request | € 32.49 | Price on request | No free shipping |
Canada | € 14.99 | € 75.00 | Price on request | No free shipping |
Chile | Price on request | € 231.349 | Price on request | No free shipping |
China | Price on request | € 49.00 | Price on request | € 5000.00 |
Costa Rica | Price on request | € 69.00 | Price on request | No free shipping |
Croatia | Price on request | € 39.00 | Price on request | No free shipping |
Cyprus | Price on request | € 65.00 | Price on request | No free shipping |
Czech Republic | Price on request | € 23.49 | Price on request | No free shipping |
Denmark | Price on request | € 29.99 | Price on request | No free shipping |
England | € null | € 35.00 | € null | No free shipping |
Estonia | Price on request | € 27.99 | Price on request | No free shipping |
Fiji | Price on request | € 125.00 | Price on request | No free shipping |
Finland | Price on request | € 39.99 | Price on request | No free shipping |
France | € 7.99 | € 25.99 | Price on request | € 250.00 |
Germany | € 2.95 | € 14.99 | Price on request | € 250.00 |
Greece | Price on request | € 32.99 | Price on request | No free shipping |
Hong Kong | € 89.00 | € 89.00 | € 89.00 | No free shipping |
Hungary | Price on request | € 35.99 | Price on request | No free shipping |
Iceland | Price on request | € 59.99 | Price on request | No free shipping |
India | Price on request | € 109.00 | Price on request | No free shipping |
Indonesia | Price on request | € 79.00 | Price on request | No free shipping |
Ireland | Price on request | € 27.49 | Price on request | No free shipping |
Israel | Price on request | € 75.00 | Price on request | No free shipping |
Italy | € 10.00 | € 26.49 | Price on request | No free shipping |
Japan | Price on request | € 125.00 | Price on request | No free shipping |
Jordan | Price on request | € 59.00 | Price on request | No free shipping |
Kuwait | Price on request | € 49.00 | Price on request | No free shipping |
Latvia | Price on request | € 26.99 | Price on request | No free shipping |
Lebanon | Price on request | € 99.00 | Price on request | No free shipping |
Lithuania | Price on request | € 24.99 | Price on request | No free shipping |
Luxembourg | Price on request | € 19.50 | € 149.99 | € 100.00 |
Malaysia | Price on request | € 59.00 | Price on request | No free shipping |
Malta | Price on request | € 75.00 | Price on request | No free shipping |
Mauritania | Price on request | € 99.00 | Price on request | No free shipping |
Mauritius | Price on request | € 79.00 | Price on request | No free shipping |
Mexico | Price on request | € 129.00 | Price on request | No free shipping |
Moldova | Price on request | € 79.00 | Price on request | No free shipping |
Montenegro | Price on request | € 79.00 | Price on request | No free shipping |
Morocco | Price on request | € 199.00 | Price on request | No free shipping |
Nederland | € 3.89 | € 6.99 | € 60.00 | € 50.00 |
New Zealand | Price on request | € 137.79 | Price on request | No free shipping |
North Korea | Price on request | € 189.00 | Price on request | No free shipping |
North Macedonia | Price on request | € 49.00 | Price on request | No free shipping |
Norway | € 19.00 | € 59.00 | € 19.00 | No free shipping |
Philippines | Price on request | € 69.00 | Price on request | No free shipping |
Poland | Price on request | € 23.99 | Price on request | No free shipping |
Portugal | € 12.99 | € 29.99 | € 299.99 | € 5000.00 |
Qatar | Price on request | € 149.00 | Price on request | No free shipping |
Romania | Price on request | € 22.99 | Price on request | No free shipping |
Russia | Price on request | € 149.99 | Price on request | No free shipping |
Saudi Arabia | Price on request | € 69.99 | Price on request | No free shipping |
Serbia | Price on request | € 64.99 | Price on request | No free shipping |
Seychelles | Price on request | € 79.99 | Price on request | No free shipping |
Singapore | € 14.99 | € 39.00 | € 14.99 | No free shipping |
Slovakia | Price on request | € 27.99 | Price on request | No free shipping |
Slovenia | Price on request | € 24.99 | Price on request | No free shipping |
South Africa | Price on request | € 129.00 | Price on request | No free shipping |
South Korea | Price on request | € 99.00 | Price on request | No free shipping |
Spain | Price on request | € 27.99 | Price on request | No free shipping |
Sweden | Price on request | € 32.99 | Price on request | No free shipping |
Switzerland | Price on request | € 49.99 | Price on request | No free shipping |
Thailand | Price on request | € 59.00 | Price on request | No free shipping |
Turkey | Price on request | € 79.00 | Price on request | No free shipping |
Uganda | Price on request | € 75.00 | Price on request | No free shipping |
Ukraine | € 9.99 | € 49.00 | € 9.99 | No free shipping |
United Arab Emirates | Price on request | € 79.00 | Price on request | No free shipping |
United Kingdom | Price on request | € 35.00 | Price on request | No free shipping |
United States | € 35.00 | € 79.00 | Price on request | No free shipping |
Uzbekistan | Price on request | € 129.00 | Price on request | No free shipping |
Vietnam | Price on request | € 79.00 | Price on request | No free shipping |
Shipment
-
Above € 50,- free delivery in NL & BEFree delivery in NL & BEIn stock Ordered before 16:00, shipped today *No stock Notify me when this product is in stockThere is a minimum of 24 hours between the time of ordering and shipping due to the extra care for correct packaging and shipping. For corals additional packaging and shipping charges apply.



Ocean Store



Ocean Store is a modern webshop with a large selection of reef aquarium equipment, supplements and food for your (marine) aquarium. We excel in reachability, service and speed. Not only in delivery of your ordered goods, but also in the adequate answering of your (marine) aquarium related questions. We are happy to share our passion for reef aquariums with you!
Open: Available Monday / Friday 9:00-20:00
Phone: +31(0)78-6456669
€ 0.99 - € 2999.99
EUR
479190
-
Grotech Element I - Iodine 250 ml
The solution for a rapid increase in iodine levels. A wide variety of trace elements are needed in the saltwater aquarium to achieve optimal growth of corals. For the sp... Delivery time 1-2 weeks€ 19.95
Grotech KH + Ca 1 1000 ml - increase in KH
GR-0011 The liquid for rapid increase in carbonate hardness. Addition of 50 ml of KH + CA 1 increases the carbonate hardness by 2 ° KH at 100 l of water. The ideal value is around 10 ° KH. The KH value reflects the pH buffer capacity of the water. Too low a KH value offers the risk of a pH drop. Content 1000ml.
Grotech KH + Ca 2 1000 ml - increase in Calcium
GR-0014 The liquid for rapid increase in the calcium value. 10ml KH + CA 2 contains 200 mg of immediately available Calcium. The ideal Ca value in the sea is 400 - 450 mg / liter. KH + CA 2 only in combination with ...
Grotech KH + Ca 3 1000 ml
GR-0027 Grotech KH + Ca 3 1000 ml - for purification of minerals in osmosis water. The liquid for remineralizing osmosis water. To remineralize osmosis water, add 10 ml. KH + CA 3 per liter ....
Grotech AipEx - 30ml
GROTECH-20000 Drop AipEx over the mouth/center of Aiptasia and Majano anemones respectively. They will be destroyed in minutes. ...
Grotech Corall A
GR-0001 Grotech Corall A contains Strontium, Magnesium, Barium, Lithium. GroTech Coral A, B and C are 3 matched mixtures of trace elements that in every respect meet all the requirements of the invertebrate ...
Grotech Corall B
GR-0004 Grotech Corall B contains Magnesium, Iron, Chrome, Manganese, Nickel, Cobalt, Copper. GroTech Coral A, B and C are 3 coordinated mixtures of trace elements that satisfy all requirements in every respect ...
Grotech Corall C
GR-0007 Grotech Corall C contains Fluor, Iodine, Boron, Molybdenum. GroTech Coral A, B and C are 3 coordinated mixtures of trace elements that in every respect meet all requirements of the invertebrate ...
Grotech Vitamino M
GR-0031 Grotech Vitamino M 500 ml - vitamins and amino acids. Vitamin and amino acids are important life forms for fish and lower animals. Amino acids cannot be absorbed independently by the organism ...
Grotech AktiveCarbon
GROTECH-00151 pH-neutral and phosphate-free pelletized high-efficiency activated carbon from the renowned Grotech brand for the removal of yellow discoloration and drug residues....
Grotech Magnesium pro liquid 1000ml
GR-0067 Grotech Magnesium pro liquid 1000ml - increase in Magnesium. The liquid for rapid increase of the Magnesium content in aquarium water. ...
Grotech Magnesium granules 1000ml
GR-0157 Grotech Magnesium granules 1000ml - increase in Magnesium. Additive for calcium reactors to increase the magnesium content. In the seawater aquarium water is to get the best coral and lime ...
Grotech Corall Set A, B, C & Vitamino
GR-500ml-balling-set GroTech Coral A, B, C and Vitamino M are matched mixtures of trace elements that in every respect meet all requirements of invertebrates ....
Grotech Phytostart 500ml. (plankton starter)
GR-0037 Place the culture preparation in the reactor and fill with salt water. Then add the recommended amount of PhytoFood. The filling of the reactor will show its original color after a few days. Rule...
Grotech Phytofood 500ml. (plankton food)
GR-0039 After the administration of PhytoFood in the plankton culture, one must wait a while before removing the plankton to feed. ...
GroTech lime water / calcium hydroxide 500g
GR-KALK Calcium hydroxide for the production of lime washer. Lime scrubber (the saturated solution contains 900 mg Ca / l), adds calcium to the aquarium. In addition, phosphates will be precipitated ....
Grotech NP-Minus BioPellets
GR-0297 Grotech NP-Minus BioPellets consist of 100% biodegradable polymers. These Grotech NP-Minus BioPellets dissolve over a period of several months, and act as a carbon source for a ...
Grotech Nitrate Plus
GROTECH-20020 Grotech Nitrat Plus is the solution for a rapid increase in the nitrate (NO3) value. Modern and efficient filter methods and rapid coral growth often lead to insufficient nitrogen (NO3...
Grotech NutriMarine N
GROTECH-00069 The additional feed for inverts and filtrations....
Grotech PlanktoMarine P
GR-00077 PlanktoMarine is a highly concentrated, aquacultured, nutrient-rich phytoplankton. It is a proprietary blend of Nannochloropsis, Tetraselmis, Tahitian Isochrysis, Pavlova and Thalasiosi...
Grotech ReefClear RC
GR-20007 Liquid filter medium. ReefClear is a liquid filter medium, consisting of natural minerals, that can quickly and effectively bind organic compounds in the aquarium water.
Grotech RemoPhos liquid
GR-20015 The solution for a rapid reduction of phosphate When feeding the fish, there is a constant increase in the phosphate value in the aquarium, which ultimately leads to an excessively high amount...
Grotech phosphate plus
GR-20023 The solution for a rapid increase in the phosphate (PO4) value. Modern and efficient filter methods and rapid coral growth often lead to an insufficient amount of phosphate (PO4 / f...
Grotech Filter cup for filter bag holder 4" (105 mm)
GR-95046 Filter media cup 4" (105 mm) Suitable for Grotech filter bag holder no. 95029, but also other filter bag holders / bag holders. Fillable filter cup made of acrylic. Ideal for filling with activated carbon...
Grotech Element Ca - Calcium
GR-20206 Element Ca - Calcium - The solution for a rapid increase in calcium levels. In the seawater aquarium, a wide variety of trace elements are required for optimal growth of corals ...
Grotech Element Cr - Chrome
GR-20208 The solution for quickly increasing Chrome content. In the seawater aquarium, a wide variety of trace elements are needed to achieve optimal growth of corals. For the spe...
Grotech Element Fe - Iron
GR-20212 The solution for a rapid increase in iron levels. In the seawater aquarium, a wide variety of trace elements are needed to achieve optimal growth of corals. For...
Grotech Element K - Potassium
GR-20218 Element K - Potassium - The solution for a quick increase in potassium levels. In the seawater aquarium, a wide variety of trace elements are needed to ensure optimal growth of corals ...
Grotech Element Cu - Copper
GR-20220 The solution for a rapid increase in copper content. In the seawater aquarium, a wide variety of trace elements are needed to achieve optimal growth of corals. For the spe...
Grotech Element Li - Lithium
GR-20222 The solution for a rapid increase in lithium levels. In the seawater aquarium, a wide variety of trace elements are needed to achieve optimal growth of corals. For the s...
Grotech Element Mg - Magnesium
GR-20224 GROTECH Element Mg - Magnesium - The solution for a rapid increase in magnesium content.
Grotech Basic Set Magnesium
GR-20514 Application of the Balling system with Grotech carbonate, calcium, mineral and magnesium pro instant. The Grotech Balling system, when used correctly, covers the needs of your saltwater aquarium from...
Grotech Basic Set Mineral
GR-20513 Application of the Balling system with Grotech carbonate, calcium, mineral and magnesium pro instant. The Grotech Balling system, when used correctly, covers the needs of your saltwater aquarium from...
Grotech Calcium per instant
20503 Large amounts of Calcium and Magnesium are required in the seawater aquarium. Calcium pro instant is a ready-to-use calcium mixture. It can either be used to mix a basic solution or di...
Grotech Calcium pro liquid
GR-00053 The solution for a quick increase in calcium levels
Grotech Carbonate per instant
GR-20500 Immediately available carbonate hardness + pH buffer In the seawater aquarium, the stability of the pH value is of utmost importance.
Grotech kH+Ca 1,2,3 + Mgpro liquid 1000ml Bundle
GR-00250 Bundle consisting of: 1 x kH + Ca 1 1000ml 1 x kH + Ca 2 1000ml 1 x kH + Ca 3 1000ml 1 x Magnesium pro liquid 1000ml ...
Grotech magnesium per instant
GR-20506 Large amounts of Calcium and Magnesium are required in the seawater aquarium. Magnesium pro instant is a ready-to-use magnesium mixture. It can either be used to mix a basic solution...
Grotech Element Mn - Manganese
GR-20226 The solution for a rapid increase in manganese levels.
Grotech Element Mo - Molybdenum
GR-20228 The solution for a rapid increase in molybdenum content. In the seawater aquarium, a wide variety of trace elements are needed to achieve optimal growth of corals.For the...
Grotech element Ni - Nickel
GR-20230 The solution for a rapid increase in nickel content. In the seawater aquarium, a wide variety of trace elements are needed to achieve optimal growth of corals. For the spec...
Grotech Element Sr - Strontium
GR-20232 In the seawater aquarium, a wide variety of trace elements are needed to achieve optimal growth of corals. For the specific increase of some elements we recommend using the solution...
Grotech Element V - Vanadium
GR-20234 The solution for a rapid increase in vanadium content. In the seawater aquarium, a wide variety of trace elements are needed to achieve optimal growth of corals. For the ...
Grotech element Zn - Zinc
GR-20236 The solution for a quick increase in zinc levels. In the seawater aquarium, a wide variety of trace elements are needed to achieve optimal growth of corals. For ...
Grotech Vervangingsgafzak 4" 200µm (105mm) for No. 95029
GR-95030 1 Replacement bag for filter bag bracket No. 95029 - Net 200 micron - Filter bag size: D = 105mm x 300mm...
Grotech probe holder, adjustable
GR-95039 Probe holder for measuring probes with a diameter of 12 mm. Mounting on horizontal + vertical discs up to 14 mm possible....
Grotech CoralMarine kH Zero 4kg
GR-20350 Special salt mix for lowering the kH value Undesirable high kH values often occur in marine aquariums as a result of incorrect dosing of water additives or incorrectly adjusted calci...
Loc-Line 1/4" NPT 1/4" Connector
41406-AQUA
Aqua Medic Coral Construct
420.70
DVH Reefpearls - Premium Marine Pellets
DVH - RP-PMP05-127
Giesemann MINOX
20.170.105-6
Modern Reef - Li+ 100ml
10133