Filter for 40gal

[PSpades]

I've recently been thinking of getting a canister filter for a 40gal long, 12" high tank. I'm looking into the xp3..though would it be okay if i use an AC70, AC20, and Fluval U1 instead? It'd say me lots of money..but a canister filter seems a lot more heavy duty and would be able to handle more bio load. I've seen people put only an AC70 on a 55gal before..it makes me nervous to see one small HOB do all the work

[Rometiklan]

I generally like to use 2 filters on any set-up over 20 gallons. With 2 filters, you have a safety net if one filter stops working for any reason. I like the idea of using a canister filter and a HOB in combination. XP3 is a great filter, and I really like the AC line of HOB power filters. Or alternatively, you can use 2 HOBs. I have never used the Fluval Ux filters before so I can't really comment on them, but I have used internal power filters before and I don't like them as much as the HOBs. HOBs are just easier to access and service, and they don't take up any room inside the tank. Have fun with your new set-up.

[PSpades]

Thanks, i guess i'll stick with the HOBs and be on the look out for a cheap canister then

[PSpades]

By the way, I only keep the Fluval U1 around to break the surface scum so I don't need to get an air pump.

[theinnkeeper]

What are you planning on keeping? If the bio load isn't big a sponge filter is enough.

[PSpades]

goldfish lol talk about bio load x_x

[Scherb]

Hello, i got a 40g long. and i have a Ac 50 and a small power head with water polisher. and it does work good, but after buying them separately i look back and see it would not have been much more for a canister. so if i had to do it again i would get a canister like a Fluval 206. plus i much prefer the flow of a canister to the waterfall affect of a hob . the hob's and Fluval u, you mentioned will work good. hope that helps Cheers

[PSpades]

Thanks, yes I would agree with the price. But since I already have the HOB's, i'll just save some money now and stick with them

[hp10BII]

Nothing wrong with a couple of HOB's for filtration. Aim for about 10x turnover for filtration and goldfish likes high oxygen levels so good surface movement would be good too. Your AC70 runs about 300gph, not sure about your other filters.

When I was planning my goldfish tank, my canister produces about 300gph, the AC110 500gph - the cutouts for the plexi tank wouldn't fit an AC110, so I had to drop down to an AC70 instead and added a powerhead for greater circulation and surface movement.

[neven]

if you are interested in many of the river species, reaching around 20 turnover would be recommended