In a message dated 6/30/2004 7:42:59 AM Pacific Standard Time, mark@pearlscott.com writes: If you are fighting green-water, then most likely you have a nutrient imbalance (if you are growing plants). Usually green water appears in Nitrate limited tanks, and so Nitrates are actually ADDED to remove the green-water. It seems counter-intuitive unless you think about how all the macro-nutrients interact with the growth cycle of plants. Mark no plant in this tank history of this tank is I had it in storage for a couple years because of a move and I was trying to sell it no sale got tired of storing it so I set it up in my spare bedroom ( which fyi has very little sunlight exposure) cycled it and put a couple paradise fish in it that were inteneded for my pond this spring. water turned green and I couldn't get it to stay cleared when I got some new fish and tanks at the auction I ook it down got rid of the gravel and left the tank sit then re-set the tank up in a diferffent spot with different filter sand and fish water clear for three days then green has stayed that way since at least the end of april if not longer I have tried to change water,the diatom filter, the algea detstroyer treatment , and phosporus remover to no avail. but in the last 2 days the water has begun to clear with no change except I tried to set up the other diatom filter must have scared it LOL. this is the first time in a lot of years of fish keeping I have had green water I hope its over. Elaine --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html --- ------------------ To unsubscribe from this list, please send mail to majordomo@thekrib.com with "Unsubscribe gsas-member" in the body of the message. Archives of this list can be found at http://lists.thekrib.com/gsas-member/