12-31-2010, 03:01 AM
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I would go with coarse sand to fine gravel because it doesnt compact as easily as fine sand, I don't know about the under gravel heater, I don't know why, just sounds like a bad idea with the dirt.Also most fish fry ( especially livebearer fey) will absolutely feast on new born rcs, though I do keep fey win them, mine are very small( Betta fry And zebra danio fry) they are small. I also keep bullfrog tadpoles win them, which I DO NOT suggest as mine are large enough to eat a 1/4 on. Rcs.