CampAquarium
Community Member
We just got back from 10 days away to find this weird, thick white substance in our sump (pics below). It's pure white, thick and is mostly on the display drain tube, and on the bottom of the refugium. There is some in the crevices of the live rock that in the refugium too. It blows off in strips or mats easily with a baster, and is soft and sort of slimy to the touch. There is brown stuff underneath and around it. Can anyone help figure out what it is? And how do we handle it? I am very worried. It certainly does not seem good and there is quite a lot of it.
We've had a few previously-healthy corals suddenly die recently, seemingly without cause, so I'm wondering if the 2 are connected. We lost a huge setosa, two torch coral heads, and currently a plating monti and an orange lepto are dying back. They are all in different locations in the tank.
Our parameters are slightly off from being away, but I don't think anything is too extreme:
Temp: 77.4
Salinity: 1.023 (looks like our ATO flooded the sump, currently doing extra salty water changes to raise this)
Alk: 8.6
Ph: 7.9
Nitrates: 3.8
Phosphates: 0.10 (looking to lower this with water changes too)
We've had a few previously-healthy corals suddenly die recently, seemingly without cause, so I'm wondering if the 2 are connected. We lost a huge setosa, two torch coral heads, and currently a plating monti and an orange lepto are dying back. They are all in different locations in the tank.
Our parameters are slightly off from being away, but I don't think anything is too extreme:
Temp: 77.4
Salinity: 1.023 (looks like our ATO flooded the sump, currently doing extra salty water changes to raise this)
Alk: 8.6
Ph: 7.9
Nitrates: 3.8
Phosphates: 0.10 (looking to lower this with water changes too)
