Plumbing two tanks together...

[Mr Cob]

So...my bright mind has been thinking of how to plumb two tanks together without using external pumps. I like tubing.

So...I just had a lightbulb go off in my head !

There it is....simple....have each tank drain to the other's sump....

Is this just that simple or am I missing something here?

Granted both these tanks may have different flow rates so I will have to get pumps to accomodate for the two sized tanks. One is a 220g and the other is an 85g. BUT...actually, I think they will drain about the same rate because they both have (1", I think) dual drain holes.

So basically what we have here is... a crazy eight flow pattern or the shape of "infinity".