- Joined
- Jul 4, 2015
- Messages
- 95
- Reaction score
- 30
Have read years' worth of online posts cautioning care if considering using Phosguard in reef tanks but can find little to nothing regarding negative user experiences relative to SPS. Does anyone have any such negative experiences/cautions to report relative to SPS only? BTW...I can't, for reasons I won't go into, be able to use GFO.

