the reason you guys are geting micro bubbles is
there is prob a air leak on the intake side of the plumbing
it wont leak water when you shut the pump down so you wont see where it is i used a ton of teflon tape on my fittings and the problem was solved

Teflon tape and flexable tubing is what I use on my tank. not only do you get more movablity but you don't have sharp bends in the tubing at all.

I don't use a PS4 though.

Bill