08-11-2011, 03:49 PM
| || | How much filtration is too much filtration for a 5gal nano?
Hi there, I guess I am new to this part of the site. I spend most of my time over at the betta forum.
I have a couple different sizes of Hagen HOB filters, also called Aquaclear I think. Right now I have the smallest size (20) on my 5.5 gallon. With a baffle, there is literally no current in the tank. I was thinking about putting one of the bigger ones on instead in order to get the most possible biological surface (I don't use carbon, so it is all just ceramic and sponge). I have one rated for a 30 gallon tank, and other for 70 gallons. The 70 is actually so large I am not sure it will even fit on the tank, but the 30 is pretty much the same size as the small one that is on the now. As long as I can control the current, is there any reason not to put the larger filter on?
To fill in a little bit more, my tank is planted with low light plants (moss, Marimo moss balls, and anubias). LED lights, and no CO2. It is divided and will have 2 male bettas in it in about a week. It is because I have the bettas that I need to keep it at almost no current. The tank has been running for about 2 months. It has copepods, and some sort of worms that came in on the moss. They must feed off of any decaying plant matter. I don't mind them, and I figure the fish will eat them to extinction when they go in.