Drilled Tanks?

Just about any LFS has them and/or can order you a tank of your liking drilled from the factory:

http://www.dfwmas.org/lfs.html
 
It depends on what you're trying to accomplish, but for just about any saltwater tank I can think of, I wouldn't run one that wasn't drilled... Your other two main options would be using an external overflow that uses a siphon to draw water over the side of the tank, and then down to a sump, or running sump-less and having all of your equipment either hanging on the back of the tank, or in the display tank itself...
 
I agree with Serk completely... My 46G tank was not drilled, and now I have this ugly overflow box sitting visible...

My next tank will <u>only</u> be predrilled (reef ready).
 
how do the pre drilled tanks work? How many holes do they have and if the holes are in the bottom I don't understand how all of the water doesn't just drain into the sump. Sorry for the novice questions :oops:
 
Either an internal overflow (Think of a partition around the holes) or the holes have pipes attached to them and go to near the top of the water (Less common) to keep the water from draining below a certain level.

The best way to understand how it all works IMHO would be to go to a LFS (Good one, not PetCo) and look at some of the Reef Ready tanks (The term "Reef Ready" is synonymous with pre-drilled with internal overflows)

Generally, there are two holes per overflow, one to drain water down, and one to attach the plumbing to bring it back. Larger tanks tend to have multiple overflows, with 2 holes each (Mine has 2 overflows, one on the left, one on the right, each with 2 holes each in them)

Clear as mud now? :wink:
 
yup! I will have to visit my lfs soon then...darn :D thanks for the help!
 
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