Please help identify what is growing on the tank glass

[technogeek, posts: 22]

There is a film all over the inside of the aquarium glass. It wipes off but comes right back. I thought it was algae at first but the Otos and Plecos leave it alone.

Pic: http://imgur.com/7mk22
Video of it moving: http://youtu.be/OWka1Iq9Jh8

Our water parameters are fine and we just had the water tested yesterday. Temp sits at about 76 F and we have 2 plecos and an Oto in the tank. They leave it alone. It is currently a low light tank.

[pleco_breeder, posts: 803]

Hard to tell from the video, or pic, but looks like hydra.

Larry

[bigbird, posts: 225]

how long does it take till it comes back ? How much light and how long for is it on ? What is your feeding regime ? cheers jk

[technogeek, posts: 22]

how long does it take till it comes back ? How much light and how long for is it on ? What is your feeding regime ? cheers jk

It is currently a low light tank (~1W/gal). We did have the light on for 12-13 hours a day but are trying to reduce it to 8-9 to see if it helps. It takes about 1 or 2 days to start coming back after wiping off the glass.

[Acid John, posts: 30]

It looks like it could be some sort of Bryozoan a form of which branches like a grey moss.

[çaykaralı, posts: 10]

BRUSH BY WİRE BRUSH.I ADJUST WİRE BRUSH THİS PROBLEM

[çaykaralı, posts: 10]

BRUSH BY GRAPE VİNEGAR.BUT empty water aquarium