Have been struggling with a green water problem for over two months. I bought my daughter a 10 gallon tank to repalce her 6 gallon System six (the all intergrated unit) when the filter motor died. I bought the Flow Master filter 30 with bio wheel for 30 gallon tanks which I was told would keep the water much clearer. For the first several months, it worked fine. Then the water started to get cloudy. Whitish cloudy at first and then a light Green tint. I should also say that the new tank was set up next to a window. I had this problem before and used a product called Alge Fix, and it cleared it up within hours. 15 drops in a ten gallon tank and no change. Asked my aquarium dealer about it and he told me to block off the sunlight from the window which I did, and to continue the treatment with the Alge Fix. after a week, the water turned a dark opaque green like pea soup. I completely covered the tank eliminating all sun light and kept up with the Alge Fix every three days. Nothing was working. The Alge Fix finally killed off my snail and frog, but that was about it.

The next suggestion was to do a 50% water change and add a phosphate filter pack. The dilluted green water didn't make it much better and within a day, it was back to zero visiability. In pure fustration, I decided to do an 100% water change, wash the tank, gravel, filter, etc in very hot water, scrubbed everything down and let the tank sit for several days with new water treated with aqua safe and the filter running before returning the fish back into the tank. I know it's not the greatest thing for the fish, but I saw no other alternative.

The tank has been blocked from any direct sunlight, but clear water lasted for about a week and now has gotten to the transitional stage of being whitish cloudy and tinted green water. Been here before. I have been adding Alge Fix every three days and it's not working. Again.

What have I been doing wrong? What should I be doing or using? Do I have an aggresive strain of alge? Is it treatable? Should I toss the idea of having an aquarium? Help please, Thanks