04-03-2008, 10:30 AM
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Originally Posted by iamntbatman
I have a similar question. I keep one of my tanks at a ph of around 6.5 but this has had a negative effect on my mystery snails. They're very active, but their shells have started to lose color (they're black mysteries) and have some pitting.
I did some research and found out that human calcium supplements can be a good idea. I bought the simplest type (no vitamin D, as I wasn't sure how good/bad it would be for my tank) with the fewest additives. The pills are 1200 mg each. For two 2-inch mysteries, how often should I dose and what's the recommended dosage (like in mg/gallon? Or should I dose in mg/snail?) So far I've just been dropping one pill in after every weekly water change, since I don't want to overdo it. I've noticed slight improvement in the appearance of my snails' shells. Any further suggestions?
(Unfortunately, any vegetables I've tried usually get eaten by my other fish before the snails can get to them.)
While I'm sure the additional calcium helps your snails' shells, I think the main problem is the pH. A pH below 7 is too acidic and can cause the shells to deteriorate, which seems to be happening in your case. I'm not sure that simply adding calcium will fix this problem. The pH needs to be raised to at least 7. I have never raised the pH in my water (as it is naturally at 7.5), but I have heard crushed coral, either in the substrate or filter media, is a good option.