- Joined
- Aug 15, 2017
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- Georgia
I tried a 24 hour gfo treatment a two package recommended quantity for my tank and crashed out My po4.. Made no impact on chrysophytes load. I use premium bra granular ferric oxide.Some do use silica to make an outer shell, but dosing silica hasn't caused them in any tank I've heard of. That doesn't mean that if everything else is perfect and silica is limiting them, it couldn't happen
OTOH, driving down silicate with something like GFO might starve them out.

