ESV Potassium Iodide Solution 8oz Filter Carolina Creek Sand is a

Carolina Creek Sand is a smaller grain sized substrate ideal for any freshwater aquaria but especially perfect for bottom dwellers and aquatic plants

Negative Buoyancy (most pellets will sink)

calcium has been found to be much more difficult to get to the proper levels of concentration

and Octo Dive-helmet

Naturox Float - 2 - 2

ESV Potassium Iodide Solution 8oz Filter Carolina Creek Sand is aPotassium Iodide 1% Solution Iodide is an important micro nutrient for many marine plants. It has also been suggested that iodide may play an important role in enhancing a coral's ability to adapt to rapid changes in light intensity and spectrum. ESV's Potassium Iodide 1% Solution is a very pure, high soluble form of inorganic iodide, which makes it ideal for maintaining dissolved iodide levels in marine aquaria.