White clouding is caused by a bacterial bloom, the usual cause is not having enough bacteria built up on the filter media & substrate to support the bio load. More water changes will not contribute to cloudy water, as long as the replacement water has been properly treated for chlorine & chloramine.
A couple examples, one of my tanks, & one where I work;
10 gallon, bottom tank in a 3 tank rack. Well established, running for years. 3 platys, & a small albino bristlenose call it home. Being the bottom tank on a rack in a room full of tanks you have a hard time seeing or hearing the hob filter if it goes out, which it did a few weeks ago. Tank went cloudy, I restarted the filter, it cleared up in a day. This tank gets 50% weekly water changes. Bacteria in the substrate was not enough to carry the bio load.
72 gallon, once again well established, running for years. Large common plec, a few tetras, 2 iridescent sharks & a clown loach. Magnum 350 for filtration. Case split, soaked motor, totally dead filter. By ther time a new magnum was purchased, the old media was dead. Bacterial bloom for a good month, until the filter media cought up with the bio load. 25% weekly water changes previous to the filter self destructing. Absolutely crystal clear water for years before the filter incident, the owner won't have it any other way. He was ready to ditch the tank, stand & all after the first 2 weeks. It took a good 6 weeks for it to clear up, it's back to it's normal self for the last few weeks. Bacteria in the substrate was not enough to carry the bio load.
Tolak