James D Posted December 4, 2006 Report Share Posted December 4, 2006 Hi, My tank water continues to turn a cloudy green colour. I have used various products to remove the cloudiness. These all work but only for a temporary time then the green water returns - I'm winning the battles but not the war!! When cloudy water tests show pH, nitrate etc. levels are fine. The tank is 400ltrs (tropical) and the canister filter is grunty enough to handle the volume. There are few plants in the tank. The tank is located in an area with high natural light levels - could this be causing the problem?? Any help/advice greatly appreciated. Thanks Quote Link to comment Share on other sites More sharing options...
IOU1 Posted December 4, 2006 Report Share Posted December 4, 2006 Yup, its the sun that is probably causing the problems, giving a 'algae bloom' making the water green. The ideal solution is to move the tank, but I understand this is not always possible Sorry but I have not experienced this before but someone on here should give some good advice on removing it. Maybe invest in a UV light, I think they are meant to clear it Quote Link to comment Share on other sites More sharing options...
Fishkeepa Posted December 4, 2006 Report Share Posted December 4, 2006 yeah UV could work but probably a bit more expensive If one face of the tank is getting the most light you could try putting a backing on it to block out the natural light. If there is a window behind the tank a backing would probably help there also. Quote Link to comment Share on other sites More sharing options...
evilknieval69 Posted December 4, 2006 Report Share Posted December 4, 2006 Yea just what those too said, it is most probably the sun. Do you dose any fertiliser for the plants? I found that my tank went green if i overdose ferts... But IMO it will be the sun, black the sides and back of the tank out, and it should get better.... Quote Link to comment Share on other sites More sharing options...
Caryl Posted December 4, 2006 Report Share Posted December 4, 2006 Too much light and too few plants. Plants compete with the algae so a bit more competition may help. Are you able to cover the ends of the tank? Quote Link to comment Share on other sites More sharing options...
jude Posted December 4, 2006 Report Share Posted December 4, 2006 I'm expecting trouble with my new tank soon. There was only one place to put it and it will get a lot of light. I have been wondering whether to hang some sort of black out cloth over the front of it during the day. I expect I will be limiting the amount of time the lights are on too. Cheers Jude Quote Link to comment Share on other sites More sharing options...
jim r Posted December 4, 2006 Report Share Posted December 4, 2006 I had a really really bad problem with green water, the tank was not in direct sunlight and well planted and like you I kept winning the battles but not the war in desperation I added a second filter (Fluval 204) to go with my Via Aqua 230 and hey presto no green water in site and never had any problems since.Money well spent in my opinion. Quote Link to comment Share on other sites More sharing options...
JoandWilly Posted December 4, 2006 Report Share Posted December 4, 2006 if you dont want to buy UV light or another filter, buy a product called magic clear, and use in conjuction with filter wool in your filter, treat majic clear every 3 days, and after every second dose, do a 30% water change and change the filter wool, but dont stop doing it once you think its all gone, cause if you leave even 1 spore it'll come back, keep doing it for about a week after you cant see it any more. Quote Link to comment Share on other sites More sharing options...
DiverJohn Posted December 5, 2006 Report Share Posted December 5, 2006 Just another $0.10 worth.... You could also take a couple of hundred mls of tank water to your LFS and get them to test for Phosphates, the kit is kinda pricey, so paying $1 or $2 for a test isnt too bad. I was having problems with a white cloud in my water and tested for phospahtes, found they were off the chart ! Fixed that and the problems went away. If it is an issue, it can be fixed using PO4 removers ($$) or do several water changes over the space of a couple of days (free). Quote Link to comment Share on other sites More sharing options...
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