40 calcium blocks freshwater aquarium snails / mystery snail / invertebrate

Description

This listing is for 40 slow dissolving calcium blocks. Can be used in any aquarium where extra calcium is needed,  they will eat some and the rest dissolves into the water column to be absorbed. It will not harm ph levels.  1-2 blocks per 10 gallons depending on how heavily the tank is stocked ( takes about 2 weeks to dissolve), will not cloud your water, and can be used instead of cuttlebone. Made with food grade calcium carbonate without any D3 or extra fillers to keep your inverts looking healthy and in good condition.  larger and smaller sizes available in my other listings.  Thanks for looking.