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RE: Small 1-gallon tank

Hoa is having trouble keeping Otto's alive in his 1-gallon, filterless tank.
I am concerned about a statement he made about treating his gravel with
acid. What was wrong with your gravel that required treatment with acid? I
know that some people recommend treating calcium containing gravel but I've
never really understood the reasoning - if the gravel is CaCO3, it's all
gonna dissolve in acid, provided there is enough acid. Wash out the acid and
what remains will continue to dissolve in your water.

You have a one gallon aquarium. Hardly a big volume of gravel. Why not just
go buy the proper substrate? The acid probably cost you more than a pound of
quartz gravel would cost.

Don't start adding more chemicals to try to control your pH - change the

James Purchase