Tropical Fish Keeping - Aquarium fish care and resources

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91sw20 08-24-2007 03:56 PM

algae on bio-wheel.
My biowheel is covered in algae. getting long hair like algae from filter across the top of the water i have to clean every couple weeks. I know you usually don't have to replace the wheels. wondering if i should replace em now. I have 2 filters one is algae covered one isn't. tank is only about 2 months old. the one that is algae covered was in the tank first, about 2 weeks longer.


fish_4_all 08-25-2007 02:37 PM

If you can, limit or block or blcoh the light from actually shining on the biowheel. Other than that, the algae is growing from an imbalance of nutrients which needs to be solved to truely get rid of it. I would not replace the biowheel though as this could cause a lengthy mini cycle and an ammonia spike.

Andyandsue 08-26-2007 11:50 AM

Don't replace the biowheel, that will make conditions worse in the tank with an ammonia spike.

Could it be that it's not actually algae, but just the build-up of bacteria that is expected in a healthy aquarium?

Mine gets a pretty big build up of what I call "gunk". Each time I change the water I now swish the biowheel a little in tank water that I've removed, and then upon replacement I put a fine fish net under the output for an hour or so to catch any loose gunk. I also use a product call Algone, a plant based pouch that helps keep algae down.

91sw20 08-26-2007 01:39 PM

thanks for the replies. The wheels are directly under my lights so a couple of weeks ago I painted the filter covers a bit to limit the light getting in. I also gently cleaned the wheels in some tank water. but this stuff is green as green can be. not the usual brown stuff. with the covers painted the growth on the wheels seems to have halted, but there is still a good portion of it remaining. I guess now I'm just concerned with the wheels spreading algae through the tank since all the water passes though them.

I will look into the nutrient issue..thanks!!

I've heard of algone before. any downside to using it?

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