u guys are assuming it is the pellets, not to de-rail this, but there are hundreds of people on Rc using them and havent had issue's, will ask the same i ask everyone, what salt are you using ? what are you dosing and as i stated on a tank that size and with fish the size you have, you were under feeding the tank, kinda like taking peroxide to clean then taking bleach over afterwards. jarret i am not trying to be harsh or doubt your thoughts, but i am in almost month 3 with no issue's, i do have alot of fish and food pretty decent though. how much of the pellets did you also start out with. and what were your levels when you started and did you monitor them along the route ?