corner filter

[michael999]

Im curious to peoples personal experience with corner filters.

It has been recomended to me by a friend as a great filtration method, as the filter has lots of room for amonia absorbing gravel, and cotton wool.

They also seem appealing due to using air to drive the system, and hence airating the tank as well, this is also appealing because its so much cheaper than separate air-pump and filter.

Also im wondering how large a tank these filters can sustain.

 

[Purple]

gonna be honest with you here - never heard of them - got a link ?

 

[Lotus]

Most people only use corner filters in fry tanks or hospital tanks. They're usually used in fairly small tanks.

By the way, you don't need an airstone in your tank if you have a good filter.

Link here: http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=3918&N=2004+113426

 

[michael999]

Thanks for the link lotus, as you can see by those figues (from your link) that these are apparently suitable up to very large tanks.
I was looking at getting 2-4ft for my big tank, so easily fitting in to that rating.

Filter Gallons Size
Small up to 45 3-1/4" x 5"
Medium up to 75 3-1/2" x 6"
Large up to 100 4" x 5"

Here is the one i am looking at getting.
http://www.equarium.com.au/store/detail.asp?id=126&cat=10
The sheer low price of that is just so tempting.

Here is my friends filter that he uses.

 

[Revolt]

I've used them on hospital tanks, and understocked tanks. They do the job, one drawback is an airpump though.

 

[michael999]

Originally posted by Revolt
I've used them on hospital tanks, and understocked tanks. They do the job, one drawback is an airpump though.

what makes an air pump a drawback?

i thought it good to get fresh air into the water.

 

[Revolt]

The noise from the pump IMO, although some are quite.

..If you have good hang on back filter you don't need a air pump.

 

[wayne]

I used these 20 years ago and thought they were absolutely rubbish.
I think sponge filters are good, but getting these things to work properly is just horrible. It's tough, no impossible, to get decent water flow working properly

 

[michael999]

thanks wayne. i might look at something else.
AquaClear 200 looks appealing.

 

[AndyL]

That specific one looks a little cheesy...

I've used a lot of air driven filters, mostly standard sponge type - and some off the shelf (at walmart) corner filters... it's been years since I've seen one like that.

Generally I'd avoid the floss / carbon filled ones.

These are the units I'm using on my new hatchery setup...
http://www.aquabid.com/cgi-bin/auction/auction.cgi?filteration&1104876439 You can build them for about 2$ each (or be lazy like me and order 20 of em prebuilt for 4$ each)

Andy