Hello Fellow Members:
I need all the help and advice I can get. I am trying to operate a 20 gallon freshwater tank dating back to early March 2007, and have not been able to get rid of a green shade of cloudy water. Until 6 or 7 weeks ago I had crystal clear water. Originally I changed the water (6 or 7 gallons) once a week. Since this cloudy stuff began I have changed the water (10 gallons) as much as 3 times a week. My last water change included changing the filter, vacuuming the gravel and cleaning the glass and filters, as I usually do. That evening the water was almost clear and looking good. The next morning it was already turning green and cloudy.
The water samples (taken twice weekly) are consistently in the 6.8 to 7.2 range and the nitrates are at 0.0.
Currently there are 4 adult guppies, 5 neons, 2 corydoras, one octoinclus, 1 molly and 4 fry. The plants are mostly plastic as I haven't had much luck getting the real ones to root; however, there are 2 small live stocks which are healthy and growing.
My filter is a Whisper 20 Power filter which uses Imagine B103 filters.
It has been suggested that I change and improve the whole system but, of course, I would prefer not to if at all possible.
I would truly appreciate any advice that anyone out there would like to share. Without help the only cure I know of is a hand grenade in the tank; it's the only humane thing I can think of for both the fish and myself!
Mack