Slimy thing in the sump

[mehmet]

LHi! My sump is covered with this slimy substance, and when touched slightly, it breaks apart and goes into the aquarium, sticking to the corals. How can I clean this? What is it? Could you help me?

 

[Dan_P]

LHi! My sump is covered with this slimy substance, and when touched slightly, it breaks apart and goes into the aquarium, sticking to the corals. How can I clean this? What is it? Could you help me?

Movie did not play on my iPad

 

[unclejed]

LHi! My sump is covered with this slimy substance, and when touched slightly, it breaks apart and goes into the aquarium, sticking to the corals. How can I clean this? What is it? Could you help me?

Turn off return pump to aquarium and then siphon out the gunk.

 

[BiggF!sh]

is it just me or, is that not english...

 

[reeftivo]

can't play video but from the picture i see it looks like a bacterial mulm. Have you been dosing microbacter or some other bacterial supplement?

 

[FUNGI]

Dosing NoPox?......

 

[BiggF!sh]

LHi! My sump is covered with this slimy substance, and when touched slightly, it breaks apart and goes into the aquarium, sticking to the corals. How can I clean this? What is it? Could you help me?

this happened to me when there was no surface agitation in my tank, try adding some pump that will stir up the top layer of water so it breaks up. at first it will get on corals and stuff, which is fine, but it will not come back if the surface is constantly agitated.

 

[Cthulukelele]

Just sort of looks like bacterial slime to me. It's either that or some sort of sponge. Both completely harmless

 

[reeftivo]

finally was able to watch video and that's definitely bacterial mulm. small pump will help in that low flow area.