Originally Posted by btook
My schedule *had* been 50% once or twice a month, but no more! I hear twice a week is the way to go, I think I'm going to wash the gravel thoroughly and then go to that schedule.
Well, that's your issue. Do at least two changes a week, of at least 50% each (but will probably have to do more on one of them).
Do not take your gravel out and wash it, just use a gravel vacuum. Taking it out and washing it will only cause you to loose the little beneficial bacteria you have in the small tank.