Why is the top of my tank foamy

[Canno2827]

On the top of my tank I have a bubbly foam. I am wondering how to get rid of it and if it is dangerous.

 

[joemamauggly]

Could be bubbles from your filter if your using HOB filter and the water lines down

 

[Canno2827]

 

[joemamauggly]

What kind of filter are you using looks like air bubbles but I can't be sure

 

[Fishanatic]

Might be protein build up, or medication.

 

[Canno2827]

I have an out of water box filter(penguin)

 

[Wolfsblood]

Could also be your dechlorinator

 

[jlk]

Could also be your dechlorinator

+1
What type of dechlorinator are you using? I have noticed some brands will cause foaminess. Certain meds, such as prazi, will as well.

 

[HandyAndy]

I was using Tertra Aqua Safe as a dechlorinator and got the same results. I've switched to Prime and a few pwc's later, the foam is going away. I think it has something to do with the slime coat function.

 

[Hholly]

Have you had any fish die recently? Once when I had a fish die and couldn't locate it's body, I had foam at the top too.