Hey guys I'm at my friend's house right now and his water is really cloudy. We just setup a 40g breeder that's been setup about 3 weeks. Noticing alot of brown stringy film at the top of his tank. All the corals and fish look fine. Parameters are all good. We're currently doing a 30% water change. Any ideas what this is or advice to help clear it up?
Salinity 1.025
CA 440
MG 1420
Ph 7.9
Temp 78°
Dkh 9.5
Ammonia 0
Nitrite 0
Nitrate 2
Salinity 1.025
CA 440
MG 1420
Ph 7.9
Temp 78°
Dkh 9.5
Ammonia 0
Nitrite 0
Nitrate 2