dt water level

Hi Guys The water level in my display tank is just under the top acrylic, so I can see a half inch above my water, which isnt great. My sump is also fairly noisy from the drain pipe into it, as the display water level is so low it takes quite a bit of air with it and I get a lot of gargling...

Hello everyone, I posted a thread about this about 2 years ago and I gave up , but now I am hoping someone can help me. I have a 150 gallon tank with a sump below. I have a Hydor ATO system in the sump with a 5 gallon reservoir. I gave up using the ATO system and have been manually...