Need to plan an overflow option "megaflop"

[BlackClown]

Okay so I have a 90 gallon tank that was originally a megaflow tank. at some point the plastic "megaflow" was removed completely. There is 2 holes in the bottom of the tank where the overflow and return used to plumb through. But that's it...

My question is how would you do an overflow on this tank at this point.

I'm not agenst drilling the back glass and sealing the holes but I'm really curious to see if there's a way to use the current drain holes with some sort of internal overflow.

This is what the mega flow was before it was removed. I'll get a pic up of what I'm looking at now.

 

[cvrle1]

I have 120g with 2 of those overflows, and wish i didnt haha.

Since your overflow has been removed, I would go this way:
Patch up the 2 holes using scrap piece of glass and silicone.
Then drill tank for beananimal overflow system.

There are many different ways of going about BeanAnimal, so spend time reading about all the possibilities, and see which one you like the most.

Start reading this thread: http://reefcentral.com/forums/showthread.php?t=1310585 (ps: it is about 450 pages long, so take your time)