I need a little help. I have owned tanks 20 years ago. This might sound crazy but had a 100 gallon with under gravel filter and never experienced bacteria bloom. I also never used chemicals such a dechloriner. I used a python to vacuum and add straight tap water and my jack dempsys were healthy and grew like crazy. My puppies even would eat out of my hand. Now moving forward, I decided to get back in the hobby and purchased a 75 gallon square tank acrylic. I have since went through the bacteria blossom, de chlorinate the water during water changes. I have a unique tank that came with its own generic filtration that I didn’t like due to it was installed in the hood of the tank which made water changes impossible. I have since removed that filter and installed a Tidal 75 and an aquarium coop sponge filter. I now have 10 African cichlid’s, 2 placos. Excuse my spelling and also every fish are less that 2”. I have had this tank up and running for about 7 weeks but no matter what I do it maintains a slight haze in the water. I have to date never saw that crystal clear water. I have been extremely patient and only have done about 15% water changes every 2 weeks. Any advice would be appreciated. 75 gallon acrylic square tank, Tidal 75 HOB, Aquarium coop sponge filter and a wave maker I have yet to install. Zero over feeding. Suggestions??