| Re: When do you do your water change? Every weekend... make ro/di on Saturday, mix the salt and stir with a pump for 24 hrs, then do the water change Sunday evening. I sometimes go 2 weeks but not very often. I do a 20 gal (ro/di) change on my 90 gal reef and a 10 gal (tap water) change on my 30 cube pony tank. |