23 gallon Long aquarium Canister filter

wieslawwichura

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HI all
So im planning to buy a canister filter for my 23 Long and Im just wondering whats the best ratio for filter circulation to aquarium volume if that make any sense. So for example canister filter with 320 gph circulation will be good enough for 23 gallon tank ?
Thanks
 
HI all
So im planning to buy a canister filter
Hello and welcome to R2R!!

Hang on the back(HOB) filter is way better for saltwater tanks. Canisters are hard to clean. Can even get a HOB that has a skimmer for surface scum.
I have a 20gallon that I’ve run just a basic HOB filter for 8 years.
 
HI all
So im planning to buy a canister filter for my 23 Long and Im just wondering whats the best ratio for filter circulation to aquarium volume if that make any sense. So for example canister filter with 320 gph circulation will be good enough for 23 gallon tank ?
Thanks
Assuming your actual water volume is somewhat less and you have an average bioload, you'll have a good turnover rate for almost all corals and fish imo.
 
Assuming your actual water volume is somewhat less and you have an average bioload, you'll have a good turnover rate for almost all corals and fish imo.
Thank for the reply guys , while im here i might ask another question . where is the best place to place inflow pipe on the bottom of the tank or closer to a top of the surface .
 
I agree with aqua man, canister filter is a PITA on saltwater tanks, and completely unneccessary since it provides very little benefit.

Its only purpose on a saltwater tank is to move water, and you can just use a powerhead for that, or to run carbon or phosguard, and you can use a HOB filter for that.
 
I just started a 21g long with a massively oversized canister filter. I chose an Oase Biomaster Thermo 600. It has an integrated heater and a "prefilter" which means most of the gunk gets trapped by the sponges, and you can pull the sponges out and wash them without opening the whole canister. I took all the sponges out of the trays in the actual canister and filled it with bio balls. My chemical media is on the top tray. I think the canister comes with 350gph, which is probably what you're going to need for a long, at a minimum (again, depending on your stocking plan).

I'm currently getting enough flow out of glass lily pipes that I don't even think I will need a powerhead? Of course, this depends on what you plan to stock. My tank will be macros, gorgonians, zoas, and mushrooms with a bunch of cool inverts.

I'll say that it just finished cycling, so I'm not sure if it will work long-term, but I used real live rock, and cleaning the pre-filter has been easy. I don't expect to have to clean the whole canister very often, and when I do, I plan to use a shop vac.

See my build thread for my set-up.
 
Mine was the fluval 305 I think. I couldn't afford the 405. Lol.
Basically if your gonna do water changes... rinse everything and swish it around in the old saltwater. Done
Most people run a hang on back filter or hang on back skimmer yes.
Canisters work though.
D
 
Get the largest one that you can if you are using it for primary means of filtration. DEFINITELY get one that has a quick disconnect for the tubing. This will save you time and make cleaning much less of a hassle. Also i think the GPH for cannister filters are vastly overstated, so get something a little larger than you think.
 
Just from pure curiosity, how loud is oase filter . would you use it in a bedroom ?
It has a "noise," but it's not super loud. The stand I have has an open back, and I think if it did not have an open back, you wouldn't be able to hear it at all. With an open back, I probably wouldn't put it in a bedroom, but I'm sensitive to noise when I try to sleep.
 
It has a "noise," but it's not super loud. The stand I have has an open back, and I think if it did not have an open back, you wouldn't be able to hear it at all. With an open back, I probably wouldn't put it in a bedroom, but I'm sensitive to noise when I try to sleep.
im curious why the oase is making any kind of noise. Have you gotten all the air bubbles out? I run a canister filter for my reef and have run a few for freshwater tanks and they have always been super quiet. quiet enough for a bedroom. I was also tempted to get the oase since it has a integrated heater.
 
im curious why the oase is making any kind of noise. Have you gotten all the air bubbles out? I run a canister filter for my reef and have run a few for freshwater tanks and they have always been super quiet. quiet enough for a bedroom. I was also tempted to get the oase since it has a integrated heater.
It's just a low hum from the motor. Like very very quiet white noise. It does not bother me, but it's not absolutely silent. Like I said, if I closed off the back of the stand I bet I wouldn't hear it at all. I also have the second largest canister. All this is to say, it's not enough that it should detract you from getting it.
 
Get the largest one that you can if you are using it for primary means of filtration. DEFINITELY get one that has a quick disconnect for the tubing. This will save you time and make cleaning much less of a hassle. Also i think the GPH for cannister filters are vastly overstated, so get something a little larger than you think.
Agree re: quick disconnect. I added double tab valves, if that's what you're talking about. Can adjust the flow and it's easy to change out the hoses for cleaning. I'm still getting used to FW equipment terminology, so if there's another quick release option I'm missing, let me know.
 
Agree re: quick disconnect. I added double tab valves, if that's what you're talking about. Can adjust the flow and it's easy to change out the hoses for cleaning. I'm still getting used to FW equipment terminology, so if there's another quick release option I'm missing, let me know.
Nope thats exactly what I am talking about. I had a canister filter without the hose release. That was biggest pain to clean. I had to remove the lily pipes and the canister all in one go
 

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