Micro Water bubble from return pump sitting next to skimmer.

[kwang0429]

So I have a UNS 90LA tank, which in my opinion is very poorly designed, I am using their protein skimmer and return pump and they all have a designated space to be put int, the middle slot is for protein skimmer while the slot right next to it is for the pump, currently I realized my pump has been blowing tons of micro bubbles daily. any idea what tool or anything I can do to avoid this from happening?

Thanks

 

[KrisReef]

I’m not familiar with this particular brand but often a sponge can be used to block out the tiny bubbles?
Gl

 

[kwang0429]

Thank you so much I will give it a try