what the heck is this

[ska_kid]

ok long story short I have these things laying eggs on top of my water ,I have a sponge filter so not enough water movement on top ...of all the years I have never had this problem any one have any ideas on what this is on the pic you could see these bugs

I just added a power head 2500gph

 

[ska_kid]

there alot of water flow now

I do wc once a week

 

[HumanBean]

What's your live stock ?

 

[ska_kid]

What's your live stock ?

14 baby frontosas

 

[SantaMonica]

Do you mean the bubbles or the darker spots on the glass?

 

[Fishy-Botany]

Could be brown algae