I’m looking for some possible help with my 125 gallon. I have 4 fish tanks and they all are in very good shape except for my 125. Clear water. Nitrogen cycle complete. Routine maintenance. Fish are healthy. Some spawning. (Firemouth cichlids, convict cichlids). I have a Fluval FX6 running on my 125 gallon. It’s only been running for about a month. I have 3 Tiger Oscars and some blood parrots in there. They seem to be healthy. The problem is the water. The Oscars are getting large and are very dirty with their waste production. Before the tank was fully cycled I started doing water changes every other day because there was so much waste on the substrate. I was vacuuming the gravel a lot. From what I understand the FX6 should be more than enough filtration for a 125 gallon. I can’t seem to get the water clear. It’s has a cloudy haze when the lights are on and when you look through the tank from the side it has a brownish haze to it when the lights are off. I was told by a couple people that I’m cleaning the gravel too much and not allowing the beneficial bacteria enough time to grow. I was told to feed the fish everyday and let it go for a month. No water changes or gravel vacuum. Could this be the cause of the brown haze? I’m attaching a picture of my 75 gallon side view compared to the 125. Any help would be appreciated. Thank you!