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Connecting Tanks

Tako_Poke

O. vulgaris
Registered
Joined
Jul 9, 2006
Messages
94
Hey all,
I was wondering if anyone has tried to connect two tanks with pvc pipes. I want to connect my octos current tank to a much smaller one where I would put crabs for the octo to crawl through and catch. Has anyone tried somthing like this before? If so Im going to need your help.
 

Nancy

Titanites
Staff member
Moderator
Joined
Nov 20, 2002
Messages
5,772
Yes, I believe several of our members have connected tanks - I don't remember who has done this or how long ago.

Have you looked at all the photos in the Tank Owners Database to see if anyone has posted pics of such a tank?

Nancy
 

DHyslop

Architeuthis
Registered
Joined
Dec 22, 2004
Messages
1,713
I have two feeder tanks hooked into my main system, but I'm using flexible vinyl hose it gives the "flexibility" to add or remove tanks from the system. My plumbing to the sump is all PVC, though.

Its easiest to hook up each extra tank in the system as another display tank in series. That is, have some flow from the display tank's overflow going into the feeder tank. Have an overflow of some sorts in the feeder tank that flows into the sump or filter.

Dan
 

Tako_Poke

O. vulgaris
Registered
Joined
Jul 9, 2006
Messages
94
So what your saying is that it should be set up in a sort of cycle. So the water flows from tank to tank to filter and back. Is that it? It would be insanely hard to build but it sounds cool. Do you have a picture?
 

DHyslop

Architeuthis
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Dec 22, 2004
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1,713
I don't have any pictures, unfortunately. Its really not any more difficult than planning a normal sump, you just have another tank between them! Since the feeder tank is gravity fed, you just need to have it at a height between the display and the sump. I have my two feeder tanks on a bookshelf next to the tank with movable shelves.

Dan
 

Thales

Colossal Squid
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Jan 22, 2004
Messages
3,013
I like to do this by running a powerhead pumping water from the sump or tank (if tank, usually in the overflow) to the 'feeder tank' which is above the sump or tank. The 'feeder tank' then gravity drains back into the sump or tank. Essentially its running two tanks off of one sump.

I find this easier than the way Dan has done his. :biggrin2:
 

Thales

Colossal Squid
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Moderator
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Jan 22, 2004
Messages
3,013
Not necessarily. It just means fewer pumps. :smile: Your return line is more complicated than mine.

In my ceph system I currently have 3 tanks off one sump like I outlined above and have had as many as 5. I can add and remove them at will as each has its own pump.
 

DHyslop

Architeuthis
Registered
Joined
Dec 22, 2004
Messages
1,713
My return isn't that complex, its just a spraybar through a bulkhead to make it octo-proof. What powerheads do you use? I was considering going that route but I was having trouble finding one with a ceramic shaft. Am I being unreasonable about that--ie, is a little metal here and there OK?
 

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