Joining two tanks

[jesusq]

I have a main 120 Gal and a side 55 Gal tank which I would like to connect together and share the same filtration system for less maintenance and saving on cost. On the 55 Gal, I?m thinking of putting slow breed fish such as sea horses, pipe fish or garden eals and possibly a few corals.

The two tanks are on separate rooms.

I was thinking of running two hose through the attic to exchange water between the two tanks since the large tank is more than capable.
I?m afraid of because of the different heights, that in case of a power failure that a continuous spill may take place. What would be the best method to hose two tanks?

 

[Boogie]

I did the same thing Ur talking about but I have a 150 long and a 125 dd and wat I did was fill up both tanks till the water filled up my and when I turn the pump of I let the water from my sump top my 2 dp tanks then added a lil more to the sump. But before u add turn the pump back off and see when it stops and mark it there so u know how much water u need

 

[bertyboy69]

Going up to the attic is pribably not going to work they shoukd share a common sump most likely in a basement

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