A: It is preferred for discus to keep temperature anywhere from 82 to 86 , ph 5.5 to 7.5 with frequent water changes, as frequent as possible . For young ones it is better to have water changes up to 5 times a week, this will keep them happy and healthy. Change about 30 to 70 % until they get 3 to 4 inches with conditioners added.
Angels prefer 78 to 82 , ph 5.9 to 7.5. with good amount of oxygen. Angels do not require frequent water changes maybe once or twice in ten days; it all depends on the size of the aquarium, number of fish and filtering system you use.
