the golden rule is "nothing happens fast in a reeftank but disaster"
the other is " the secret to pollution is dillution"
their ideas were right but the method is too fast, perhaps if you had no livestock in the tank but with critters in the tank i wouldnt be doing large water changes like that daily.
if your going to do on average 10% weekly water changes , then what you should do or have done is a larger water change (20-40%) then continue weekly with your 10%
this is only assuming you knnow where the nitrates are coming from and have a way to battle them??
__________________
........
|