Would this work for a dart tank? I've heard concrete can raise the PH too high. I may try this as it looks really easy, but I want to check on the toxicity of it.
www.catfishheaven.net/day1.html
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Kyle
Dart Links - still a work in progress
1.2.0 D. leucomelas
1.1.0 D. azureus
1.0.1 D. imitators


