Block Iodine Concentrated Solution

Concentrated Iodine, Bromine, Fluorine and Selenium Solution

• Adds Iodine, Fluorine, Bromine, and Selenium
• Restores Trace Elements When Below Ideal Levels
• Easy and Accurate Dosing with Dropper Cap
• Dose Manually or with a Dosing Pump

Tropic Marin Block Iodine makes it simple to maintain balanced levels of iodine, fluorine, bromine, and selenium in your reef aquarium. These essential trace elements support coral color, growth, and overall health, but they can become depleted over time.

The Block System is designed to replenish these elements together in the right proportions. Each solution in the system targets related elements that are typically used up at the same rate, helping you keep your aquarium chemistry balanced without complicated testing or guesswork.

Elements, Chemical Symbol and Contents:

• Iodine (I) – 875 mg/l (ppm)
• Fluorine (F) – 1110 mg/l (ppm)
• Bromine (Br) – 435 mg/l (ppm)
• Selenium (Se) – 0.5 mg/l (ppm)

What Are These Elements Used For?

Iodine, Fluorine, and Bromine: Incorporated in and strengthens organic and inorganic skeletons. Iodine is essential for the light acclimatization of corals.

Selenium: Acts as protection against oxygen radicals.

Dosing Information:

For best results, use Tropic Marin Block Elements in combination with Tropic Marin ICP Water Analysis to accurately identify and correct trace element deficiencies.

2 ml per 26 gallons (100 liters) of aquarium volume increases the concentration of iodine by 17.5 µg/l (ppb), of fluorine by 22.2 µg/l (ppb), of bromine by 8.7 µg/l (ppb), and of selenium by 0.01 µg/l (ppb).

Maximum dosage: 4 ml per 26 gallons (100 liters) daily.

Ingredients: Water, inorganic iodine, fluorine, bromine, and selenium compounds

What's Included?

Block Iodine (1000 ml)