Single canister-Dual tanks
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Old 05-06-2013, 02:05 AM   #1
PapHater
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Single canister-Dual tanks


I recently decided against setting up my 90g (moving in a year or so and don't feel like moving it down stairs) and to help placate my tank urges I am thinking about setting up two ten gallon tanks that would be side by side. One would be a shrimp tank (RCS, nothing fancy) and the other would be a dwarf puffer tank.

What do you guys think about using a single canister filter for both? I know I'd have to do all of my own plumbing but that isn't a big deal for me. Both would be low tech. Would it be feasible? Or would I just be better off with HOB's on both?
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Old 05-06-2013, 08:11 AM   #2
DaveK
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In my opinion, unless your willing to drill the tanks, and install bulkhead fittings, and connect them, using a single canister filter on two tanks is looking for trouble.

You need a way to keep the water level the same in both tanks. While it is possible to use a siphon between the tanks, if it fails, you have a major flood, because the canister will pump one tank dry and the other will overflow.

That's also a lot of work for two 10 gal tanks. I'd go with two hang on the back filterers or two canisters, if you want to spend the money.
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Old 05-06-2013, 11:40 AM   #3
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I would put the intake in one tank and the output in the other, with a pair (one for redundancy) of siphons connecting the two. Everyone talks about the consequences of a siphon failing, but I've used them for years on many tanks with no problems.
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Old 05-06-2013, 02:45 PM   #4
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When I was thinking this up I don't really consider the water level being that big of an issue, though I suppose if one of the returns got plugged it'd be a disaster. I really don't want to have to deal with a siphon purely for a couple ten gallon tanks so maybe I'll just go the HOB route.

Though I really wanted that larger volume of water to help keep my parameters steady...maybe I'll just get a 20L and put a divider in.

hmmm
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