Change the water once a week, liquid oxygen is good to put in once every 2 days too. Just a tea-spoon full in the res does wonders.
KHAN Reviewed by KHAN on . Help. How often should I or should I change my reservoir water. How often should I or should I change my reservoir water. I need to know this because I plan on starting a crop of 6 plants this week. I'm a noob but i've been reading the threads, but I just can't seem to find the answer. Much help would be appreciated. ~PM_BigBud~ Rating: 5