i started a fresh water tanks 3 months ago. it currently has 3 childids. im running one hob
with its regular filter media. and i have another hob
filter with mechanical filter and carbon in it.
i dont over feed.
half the time the water is clear. then out of no where it gets pretty cloudy for a few days then clear again.
i do 50 % water changes every week or so.
whats wrong. plz help