My proof is that we keep these tanks as closed systems. There's no way to keep everything replenished and in balance without regular water changes. You can get away without water changes for quite awhile, years likely, but sooner or later the pied piper shows up and demands payment.what’s your proof for saying this? I do water changes so I want to point that out. But there are plenty of amazing tanks using various methods with no water changes for years...
corey