I have been battling diatoms and Cyano since I removed the ship decoration. Initially tried Chemiclean but no good; well this week realized I was using the wrong spoon as it was to small. the cyano is gone but still have diatoms. My Nitrate is 0 and Phos is 0.5.
Should I add Phosguard to remove Phos and Silicate or just a silicate remover?
Should I add Phosguard to remove Phos and Silicate or just a silicate remover?