Review on 12 Count Greenpro Root Tabs Fertilizer Tablets: Ideal For Aquariums, Ponds & Water Gardens! by Steve Modesto
Turns black under sand
I use this with Co2 booster and most of my plants are doing great. When I clean my sand, I find globs of black stuff underneath and I'm quit sure it's the root tabs that haven't completely dissolved yet. Don't know for sure but never had it before using them.
- Safe for fish and other aquatic life
- Can damage aquarium filters or water pumps
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