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What type of shrimp? And what are your water parameters- mainly GH and KH. Gives you a basis to see if your water is too soft or not.
You can try cuttlebone, pretty cheap over here it's less than two dollars a piece, three for five bucks.
It's slow release and unquantifiable though.
I would break it up into smaller pieces to increase surface area for dissolution and put it straight into the tank in a good flow spot or in the filter. I've done both ways, it takes a few days to sink.
PS it adds carbonates too, and some magnesium, snails graze on it, sometimes the shrimp too once the cuttlebone develops biofilm
You can try cuttlebone, pretty cheap over here it's less than two dollars a piece, three for five bucks.
It's slow release and unquantifiable though.
I would break it up into smaller pieces to increase surface area for dissolution and put it straight into the tank in a good flow spot or in the filter. I've done both ways, it takes a few days to sink.
PS it adds carbonates too, and some magnesium, snails graze on it, sometimes the shrimp too once the cuttlebone develops biofilm