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polyppetey
01/01/2009, 12:52 AM
I'm posting for a friend of mine who has a stock 24 gallon nano cube. His tank os overrun with GHA and I am at loss as to how it can be fixed. So far he has cut the light cycle down, been manually removing as much as possible and cut out all feeding. He has been doing this for a month and still it seems like it is not slowing down at all. The parameters are perfect which is puzzling. Ammonia, nitrite and nitrate are all at 0.
He bought a phosphate test kit and that reads 0 as well. I am puzzled at why it is growing so robustly. I am guessing the phosphates and such are bound up in the GHA??
Water changes are 20% weekly and RO water is used for top off as well as the water changes. He even tested the RO and that checks out fine. He runs carbon and I have read some brands of carbon will leach phosphates into the tank water, is this true??

Livestock consists of the regular nano stuff like mushrooms, frogspawn polyps. There are 3 fish, 6 hermits and 5 snails-not sure of the species.

The lights are about 6 months old so I don't think it is a specttrum shift problem.

If anyone has any suggestions it would be appreciated.
I suggested more CUC, what do you think??

If is funny as my 12 g nano has worse water parameters and no GHA except on the hydor flow nozzle.

fishyfriend4u
01/01/2009, 04:57 AM
Well a few things,
how long has the tank been up?
Yes some carbons can leach phosphates!
Nitrates are going to read 0 if he has a ton of algae, he has something in there brewing up stuff.

Michael
01/01/2009, 05:04 AM
without pics its hard to be sure what it is, however it could be bryopsis, a very stubborn thing to remove from any aquaria once its settled in, one way is raising the ph to 8.4-8.5 for 2-3 weeks, there are other methods, heres a couple of links

http://fish.suite101.com/article.cfm/bryopsis_a_common_pest_in_aquaria
http://www.reefcentral.com/forums/showthread.php?threadid=167632

and 1 for luck

http://ezinearticles.com/?Tips-On-Battling-Nuisance-Algae-In-The-Marine-Aquarium&id=1107041