Who Gives A Fish Forums

My discus tank has been cloudy for weeks now. I do weekly 50% water changes, use a Fluval 407 canister filter, and keep the temp at 84°F. Tank is 75 gallons with 6 discus, some cardinal tetras, and a few corydoras. Substrate is sand, and I have some driftwood and Amazon swords. Parameters are 0 ...

Wild discus are stunning, but they're definitely more sensitive. I've kept both, and the wild ones need pristine water. My setup's similar to yours, 80 gallon, soft water, and I do 60% changes twice a week. They're picky eaters too, took mine a month to accept pellets. If you're up for the challenge ...