Why Are There Bubbles On My Surface?

I recently recharged my purigen and when I put it back into the tank I noticed a layer of bubbles on my surface. i've looked into different reasons that cause bubbling and am worried that it might be because of cleaning products. I recharged the purigen as instructed.

I also have a powerhead and a aquaclear 110 on my 40 gallon. is it just because of high surface agitation?

I have also been over feeding the tank but don't know what bubbles look like because of excess protein. I noticed this last night and fish seem fine. could someone help me diagnose? I also checked my water parameters and they were all in a healthy range.

 

Proteins cause bubbles to stick together. You seem on the right track.

 

Proteins cause bubbles to stick together.

gotcha! is there a chance it might be bleach residue from the purigen? I did decholrinate for 8hrs with prime after the 1:1 bleach/ water.

 

You said you'd been overfeeding. It's most likely the food proteins you are seeing as bubble joiners.

 

You said you'd been overfeeding. It's most likely the food proteins you are seeing as bubble joiners.

I think you were right. I started feeding less and the bubbles stopped. thank you!