Aquarium Filter

lupi

Lifer
Apr 8, 2001
32,539
260
126
Setting one of my freshwater tanks up after having been down for some time. Some of the underground filter parts have changed color with age and would need to be replaced. I also have seen several references to UF no longer being a desired item. So for anyone who has been keeping up with this, should I use a UF again or just ditch it totally?
 

Jodell88

Diamond Member
Jan 29, 2007
8,762
30
91
I'd ditch them and get a good HOB or cannister filter (cannisters are pricey).
 

rsutoratosu

Platinum Member
Feb 18, 2011
2,716
4
81
Theres 2 thoughts to uf. Bed for good bacterial or bed for crap to grow. I used to use UF, but switched to bare tank... A few times I found tons of crap under it when cleaning.. so I kinda stop using it.. Some people run the reverse power head down the tube to flush stuff out. I think that might be the better way but my power heads does not go reverse.
 

Gooberlx2

Lifer
May 4, 2001
15,381
6
91
Substrate can act as a bio-filter for some of the bio-breakdown processes (like ammonia-->nitrite-->nitrate), that a UF might impede.
 

lupi

Lifer
Apr 8, 2001
32,539
260
126
That tank has a HOB one, but with much of the reading I've done lately seeming to be against the UF, for some of the same reasons mentioned here, I wanted to get more info before putting the gravel bed ontop of the UF base.
 

lupi

Lifer
Apr 8, 2001
32,539
260
126
Tank all set u. Ran it about a week with no inhabitants. Probably long enough that I didn't need to treat the water but dropped some stress coat in before added the fish anyway. Didn't feed them day 1 as they came home pretty late. Had a little clouding late day 3, a noticeable amount through day 4, and this morning of day 5 its back to clear water. Only tossed a half dozen tetras annd danios, will wait about a week them probably double thay but other wise looks like every thing is good to go. Only thing I had come u was I had to turn down the heater a bit, with summer time and starting to run the hood light 12+hours heated the water up a bit more than when running it dark.

Will say though that while they have some interesting colors now for freshwater fish, price on them sure has shot up since I last remember.
 

evident

Lifer
Apr 5, 2005
12,130
749
126
make sure you get the api freshwater test kit to make sure your tank is settled. otherwise you will have problems. just get a cheap sponge filter, canister or hob
 

Minerva

Platinum Member
Nov 18, 1999
2,134
25
91
Underground filter? :\

Those (undergravel) filters are great but can be a nightmare if you don't keep them up and your system crashes. HOBs look ugly as shit and foam/box filters take up too much room. Unless you're running a 125 gal or something but then you would be using a fluval or wet dry...
 

NutBucket

Lifer
Aug 30, 2000
27,150
635
126
How big is the tank? I finally switched to a canister for my 29gal tank and its great. I don't have to touch the filter for months at a time and the water stays nice and clean. Highly suggest you invest in one.
 

blackangst1

Lifer
Feb 23, 2005
22,902
2,359
126
I highly suggest you get rid of the UG filter and replace with a canister.

And NatBucket asked an important question...what size tank?
 

WackyDan

Diamond Member
Jan 26, 2004
4,794
68
91
UG filters are fine if you run reverse flow power heads with pre-filters.

Would I do it? No... IU run my tanks for several years before I might tear them down and redo or retire them. A hob is fine as long as you are using a gravel vac with every water change.
 

lupi

Lifer
Apr 8, 2001
32,539
260
126
This is just a small 29g freshwater, didn't use the UG and while I have a couple canisters for the larger tanks that aren't set up no plans to use one for this small set up. It's much easier for something this size to just lift the filter basket out and clean it.
 

NutBucket

Lifer
Aug 30, 2000
27,150
635
126
Disagree. I was running an Emperor 280 on my tank it required bi-weekly cleaning. That's ridiculous. Plus it didn't do a good job of keeping the tank clean even though its "rated" for 50 gallons. Those ratings are pure BS. They might be accurate if you have 2 or 3 fish. The Fluval 305 I replaced it with is rated for 70 gallons. Again, there's no way I would expect it to keep with the bioload in a tank that big.
 

HumblePie

Lifer
Oct 30, 2000
14,665
440
126
Go with a sponge filter, HOB, or canister. Sponge works great if you willing to upkeep it and have a smaller bio footprint.

There are several great HOB (hang on the back) filter systems out there. Most are fairly quiet, but they all still make some noise. I personally say to get a filter designed for twice your tank size. So for example, a Marineland Emperor 400 is designed for 90g tanks, but I would never use a single one for anything over 45-55 gallons. I have a 55 gallon tank with two of them. Works better this way so you can stagger your cleaning routine for the tank.

Still, my personal experience is to go with a decent canister. They get very pricey depending on what you buy. If you want the best bang for the buck canister I'd personally go with this one here.

http://www.amazon.com/Aquatop-CF500U...ywords=aquatop

I've been using it for about 3 years now with zero problems. You are not going to find a better canister for that price. They work well, are completely silent, and cheap enough to buy two for a decent size tank. That way if one does fail, you don't run into problems with fish dying. There is never any such thing as too much filtration.

Of course, you can always do a DIY "canister" aka the sump method. Basically have a bio filter smaller tank for your bigger tank that contains the fish.

Here's how I've been doing my tanks for a bit. I have a 55 gallon and a 125 gallon. I have 2 of the aquatops on the 125 and 2 of the marineland emperor 400s on the 55 gallon. I would have swapped the HOBs out for more canisters but I've been lazy. I also have an eheim 2217 on a smaller 29 gallon tank.

For filter media in the canisters, I still use the pads that came with it. Every so often I disassemble the canister and "wash" off the media pieces with completely clean distilled water. Here is how I stack my aquatops for filter media.

I purchased a roll of polyfil from walmart for like $3. I cut out a piece to fit my basket in the canister. I put one piece on the very bottom and just toss it when I clean the canister out for maintenance. I have my course "sponge" on top of that in the same basket.

Next basket up I have plastic pot scrubbers. I bought 4 packs of 6 per pack at the dollar store. I stack them sideways and fill up the next basket in the canister up.

Third basket I have some straws I cut up. Again a few packages of smallish diameter straws I bought from the dollar store. Cut them up in to small rings and dump them in the basket. More surface area on those than anything you are going to buy anywhere.

I had bought some zeolite/carbon chips in bulk long ago and use that in the last basket at the top of the canister. I got some pantyhose, filled with the activated carbon/zeolite chips, and put it in the top. I put another bit of that polyfil fiber over that but it's thicker density than what I used in the bottom basket. It's basically a polishing pad. Also fill up the pantyhose outside or you'll get carbon dust all over inside your house.

The media for my canisters was like $10 total that way (not counting the carbon/zeolite). No need for expensive bio balls, or bio rings, or other crap. Those things work, but are just way too expensive.
 

blackangst1

Lifer
Feb 23, 2005
22,902
2,359
126
Go with a sponge filter, HOB, or canister. Sponge works great if you willing to upkeep it and have a smaller bio footprint.

There are several great HOB (hang on the back) filter systems out there. Most are fairly quiet, but they all still make some noise. I personally say to get a filter designed for twice your tank size. So for example, a Marineland Emperor 400 is designed for 90g tanks, but I would never use a single one for anything over 45-55 gallons. I have a 55 gallon tank with two of them. Works better this way so you can stagger your cleaning routine for the tank.

Still, my personal experience is to go with a decent canister. They get very pricey depending on what you buy. If you want the best bang for the buck canister I'd personally go with this one here.

http://www.amazon.com/Aquatop-CF500U...ywords=aquatop

I've been using it for about 3 years now with zero problems. You are not going to find a better canister for that price. They work well, are completely silent, and cheap enough to buy two for a decent size tank. That way if one does fail, you don't run into problems with fish dying. There is never any such thing as too much filtration.

Of course, you can always do a DIY "canister" aka the sump method. Basically have a bio filter smaller tank for your bigger tank that contains the fish.

Here's how I've been doing my tanks for a bit. I have a 55 gallon and a 125 gallon. I have 2 of the aquatops on the 125 and 2 of the marineland emperor 400s on the 55 gallon. I would have swapped the HOBs out for more canisters but I've been lazy. I also have an eheim 2217 on a smaller 29 gallon tank.

For filter media in the canisters, I still use the pads that came with it. Every so often I disassemble the canister and "wash" off the media pieces with completely clean distilled water. Here is how I stack my aquatops for filter media.

I purchased a roll of polyfil from walmart for like $3. I cut out a piece to fit my basket in the canister. I put one piece on the very bottom and just toss it when I clean the canister out for maintenance. I have my course "sponge" on top of that in the same basket.

Next basket up I have plastic pot scrubbers. I bought 4 packs of 6 per pack at the dollar store. I stack them sideways and fill up the next basket in the canister up.

Third basket I have some straws I cut up. Again a few packages of smallish diameter straws I bought from the dollar store. Cut them up in to small rings and dump them in the basket. More surface area on those than anything you are going to buy anywhere.

I had bought some zeolite/carbon chips in bulk long ago and use that in the last basket at the top of the canister. I got some pantyhose, filled with the activated carbon/zeolite chips, and put it in the top. I put another bit of that polyfil fiber over that but it's thicker density than what I used in the bottom basket. It's basically a polishing pad. Also fill up the pantyhose outside or you'll get carbon dust all over inside your house.

The media for my canisters was like $10 total that way (not counting the carbon/zeolite). No need for expensive bio balls, or bio rings, or other crap. Those things work, but are just way too expensive.

This is good advice...although I think a sump for a 29 is a bit too much work :)

For a 29 a HOB can be OK if its a quality filter. What youre aiming fior is 6-8 times your tank size per hour of filtration. So for a 29 look for something that does 350gph or so for an average bio load.
 

BUTCH1

Lifer
Jul 15, 2000
20,433
1,769
126
We had UG filters buy prefer HOB's now, when I do water changes I use the tube to clean up the crap that accumulates under the gravel
 

gus6464

Golden Member
Nov 10, 2005
1,848
32
91
I find that carbon on a freshwater tank is really not needed. I just have ceramic rings for bio and a bag of Purigen on my canister and it does the job.

BTW always go for a much higher rating canister than what your tank is. I am even finding my 306 is not enough flow as I have an inline heater and CO2 reactor
 

gus6464

Golden Member
Nov 10, 2005
1,848
32
91
A sump on a freshwater tank is a waste. If you got a massive tank go big canister or two like the Fluval FX.
 

desura

Diamond Member
Mar 22, 2013
4,627
129
101
Meh, filters IME are good mainly for the water flow, not really for any of the filter media.

So yeah, just get a cheap one.
 

desura

Diamond Member
Mar 22, 2013
4,627
129
101
?

Then again, I also heavily heavily plant all of my tanks, and so they tend to be really really clean all by themselves.

I have found that carbon does make for clearer water.