Pretty quiet actually no gurgling at all just the sound of the water going into the drains. That's the only sound from it since the pump and all is in the garage except a hummin noise coming from the pump return line. I have some spray foam I'm going to fill in the extra gaps in the holes with and see if that helps with the humming sound.

Going just softies, lps, and fish. May try some easy SPS towards top like caps or other digis and see how they do.