Dangers of overfiltering?

[JBFett]

Are there any dangers to overfiltering a tank? I plan on setting up a ten gallon saltwater tank with a five gallon refugium (largely for water stability) and would like to filter it with a Penguin 170. I have a Penguin 330 for another tank and I could use the same cartridges, plus I could swap bio-wheels to speed up new tank syndrome. I'd like to save a little money by getting ordinary sand and either base rock or make my own live rock with a little of the real thing to seed the system. I know overfiltering is not generally a bad thing but I've never set up a saltwater this small.

 

[indy]

I don't think its really possible to overfilter. The bacteria levels will average around the amount of food they have available, regerdless of the numbers/amount of filtration you can run.

Why not run DSB/refugium filtration? Save a lot of money, maintenance time, and is a lot more natural.

 

[HoopsGuru]

Probably because trying to setup a DSB in a 10g or 5g fuge is difficult and not very productive. You lose a ton of real estate, which ultimately comes at the sacrifice of water volume.