Small tank (15-25 gallon), basic fish (tetras, corey cats, etc). Is an undergravel filter a smart move, or just go with the basic hang-on filter, or a combination of both?
2007-03-11 17:11:25 · 4 answers · asked by The Maestro 4 in Pets ➔ Fish
You could go any of the three ways. The undergravel is less popular now than it once was, but it still has it's uses as far as I'm concerned. It's not the best way to go, if you're only using the air pump, but with a small powerhead it works for a small tank, or in combination with a hang-on-tank type for deep tanks.
I did a breakdown of the pros and cons of these a while back - I'll provide you with a link to that Q & A and let you decide based on the info there and other answers you get:
http://answers.yahoo.com/question/index;_ylt=At5Hin9EqxqJ9i4ZvKCTxzUAAAAA?qid=20070121142409AAqXmPT
2007-03-11 17:48:26 · answer #1 · answered by copperhead 7 · 1⤊ 0⤋
Undergravels are fantastic for certain uses. Breeding tanks for example. They offer great biological filtration, fair mechanical and no chemical.
Hang on filters offer fair biological, good mechanical and good chemical.
For a basic comminuty tank in the smaller sizes I would suggest the hang on.
MM
2007-03-11 17:40:49 · answer #2 · answered by magicman116 7 · 0⤊ 1⤋
No. Underground filters are no longer efficient and create extra artwork in the long-term via trapping "dirt" below. extra aquarists are not to any extent further helping using below gravel filters. Above fixed filters are the final maximum precious.
2016-11-24 21:42:28 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Under-gravel filter is the better. Only use a "hang-on filter" if you think that the under-gravel filter does not work well on it's own.
The under-gravel filter is the more natural, and the cheapest!
I never used a "hang-on filter" on any of my smaller tanks. (only on my 240L tank)
2007-03-11 17:21:56 · answer #4 · answered by Nathan H 2 · 0⤊ 1⤋