Large water changes input

[waynemah]

Originally Posted by Parker

You don't necessarily want to drop your nitrates that far that fast, nothing good happens fast.

Since it's to the point where there are casualties, it might be a good idea to try and reduce the nitrates fairly quick.

I would perform a 20% water change every 2 days until the nitrates are in check. During this time look for the cause of the nitrates and look into a long term solution for the nitrates.

If you want some solutions, it might be a good idea to post some details about your setup / husbandry.