2 canisters 1 tank?

[scotty82]

Ok, I'm setting up a 75 and I'm going to use two canisters. My question here is, should the intakes be on opposite sides of the tank or beside eachother? I'm going to build the intakes and outflows all from cpvc.

[Bubba Shrimp]

Yes opposite sides would be best

[mistahoo]

Originally Posted by Bubba Shrimp

Yes opposite sides would be best

^ this

[scotty82]

Thats what I was thinking, but then after thinking to much into it I thought that doing it that way would give the tank two different currents and might mess with the fish. Thanks for the input.

Also do you think having the intake and out flow cross would be better. Like the right sides intake go into the left side of my spraybar. (spraybar is going to be on back side the length of the tank) And left intake going to the right of the spraybar? So water coming out of left canister flows through tank then into right canister.

[Dx3Bash]

Hmm, I've never though of that, but I don't see any negative to doing so. I guess theoretically it could help disperse things like excel and ferts quicker throughout the entire water table.

Noticed your 75 Journal. Have any recent pictures you can add?

[OVT]

I have a 75 with 2 filters, intakes in opposite corners, crossed with outflows.

One thing to watch out for: too much current and a lot of organics == good conditions for BBA.

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[scotty82]

Originally Posted by Dx3Bash

Noticed your 75 Journal. Have any recent pictures you can add?

I'll take some pics this week, but not much has changed yet. I had to finish my basement before I could start the tank back up. We decided it'd look good downstairs in our new family room. And I just did "last week" finish my basement.

Originally Posted by OVT

I have a 75 with 2 filters, intakes in opposite corners, crossed with outflows.

One thing to watch out for: too much current and a lot of organics == good conditions for BBA.

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I was already thinking about the too much current thing. I'm making a diy spraybar with the intakes. On each canister out, I'm going to put in a ball valve so I can control how much current I have. Plus I figure 2 rena xp2s would be to much for 75.

[Dx3Bash]

I have a Fluval 306 and a Rena Filstar XP3 on my 75 gallon. Isn't really too much. I just dial down the flow rate a tad. Check out the link in my sig. That vid was shot just two days after planting (yesterday) so I did have the flow on both filters at max, but have since toned it down. As you will see, the only real heavy current is in the middle where the two outflows "collide". the plants on either end are gently waving.

[scotty82]

Dx3Basch, that's a really nice tank you have there. I see you used two separate spraybars. Do you think the flow would be more even (not so strong in the middle) if the two outflows were going into a single long spraybar?

[Dx3Bash]

I don't know if that would matter. I actually only have one spraybar. You may have mistaken a temporary small heater I have up towards the top on one side while I wait for my new 300w heater. I use my old Rena Filstar XP1 spray bar on the new XP3, and I am using the output nozzle that came with the XP3 on the Fluval 306. I did make a DiY spraybar for the Fluval, but the black Krylon Fusion paint started to come off so I need to repaint it.