This one is not for use in a system with fish. This stuff will spike your ammonia so it is not recommended for use in a system with fish. I am testing this stuff for use in fishless systems that will be re-integrated with fish in the future.
This product has the benefit of smelling like strong mint so is a bit more pleasing to use than some of the others I’ve tried.
Gro-tone 16 ounce concentrate
$9.95
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