need under gravel filter for 20 gallon....

Let me find out what size i need, its for a friend who has never had fish before and just setup his tank completely wrong....

So yeah, ill get back to you........
 
I'd tell him to scrap to undergravel all together and use a gravel washer siphon. IMO, undergravel filters are a pain and create problems down the road with Nitrates. Just my Opinion though.

I would be interested in any other thoughts about this. I threw out all my undergravels about 20 years ago.
 
This is for a freshwater setup.....i would never tell anyone to use a UGF in a saltwater setup. In freshwater, they are IMO, the best form of biological filtration there is, next to a wet dry. Theres a TON of surface area on that gravel bed. I see no reason not to utilize the gravel and turn it into a filter rather than just a crap trap. I realize there is still a need for gravel washing but it doesn't have to be on such a frequent basis.

BTW:what freshwater stuff do you keep?
 
I was thinking freshwater, but the crap never leaves the tank under those plates to produce nitrates. That is why I don't use them and wash gravel about once a month with a Magnum. But then again I always tend to have nitrates a bit high because my fish are old and big.

I have had freshwater most of my life. I currently have three 55 fW tanks. One with 3 Royal Blue Discus, Royal Pleco, Synadontis Angelicus, Gold Nugget Pleco and a Rhino Pleco. All about 8 years old. Obviously my pride and joy! Then I have a 55 for my wife with angels. I have another 55 setup that had two nice Oscars and a large Synadontis Nigreventris(SP?), then the 14 year old got Ferrets. I never gave it a thought. Dang that was a well fed ferret.
 
Yeah i guess that is one downfall of the UGF but i think that if your do "regular" gravel washings, the amount of biological filtration it has, makes it a lot more beginner friendly. If you have huge fish, feed a lot and are having problems with crap collecting under the plates maybe try feeding less or uping the mechanical filtration.

Are you doing discus in hard water? I guess i've never really heard of people doing synodontis with discus. Being synodontis are from lake Tanganyika and discus are from the Amazon.
 
What did the ferret eat?:confused:

I just set up a 55. I think I'm going to put some Maliwi Peacocks in it. I'm thinking German Reds they are pretty sweet.
 
I think there is one in the garage, one in the driveway and maybe one in the basement. What size do you need?
 
<a href=showthread.php?s=&postid=9768461#post9768461 target=_blank>Originally posted</a> by Lori M
I think there is one in the garage, one in the driveway and maybe one in the basement. What size do you need?

The one in the garage is for a 90 or a 75 and the one in the driveway if for a 40 breeder.....
 
Well actually, the ferret just pulled the Oscars and Synadontis out of the tanks and they fell behind. He didn't actually eat them. It was just more colorful that way. ;0)

Waverz, I know but Synadontis are much more forgiving and will still do well in soft water (RO/DI). These have always been my favorites and I decided about 8 years to attempt to keep them together. I used to have 2 Syn Euc's in there as well. And I forgot, the Synadontis in with the Oscars wasn't a Nig... it was was a Eucalyptus (sp? again)
 
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