overflow ???

[RcToners]

Okay so I just picked up a 375 g acrylic tank, the tank currently has three 2 and a half inch holes drilled in the top back of the tank, 2 on one side and one on the other. I am having issues figuring out the best way to set up the over flows without them being loud and without having to add large overflow boxes inside the tank. Any ideas ??

[NanoReefWanabe]

you could add a small coast to coast internal overflow and then do a regular sized external overflow box...minimizes the internal footprint while giving you the full benefits of a C2C....plus you can then plumb it VIA the SFOS and not have to worry about noise or floods ever again..

[RcToners]

Any other ideas

[hardin4019]

External standpipe design?
http://www.reefcentral.com/forums/showthread.php?t=1541946&highlight=standpipe
http://www.dursostandpipes.com/

[mrx66699]

rc check the build thread for mine I just built the overflow you are needing for my 340 pm me if you have any questions