overflows

I've had pretty good luck with a CPR Overflow along with an Aqualifter. Some people hate them and swear by the U-Tube style overflows like the ones made by LifeReef. I've never used anything but a CPR style so I couldn't compare the two. I just know mine has failed a few times but it was because I used translucent tubing which eventually got clogged with algae.

 

I agree with waverz on the CPR w/ aqualifter.   And if you are interested I have one, I think I have the aqualifter too.  

 

The best overflow is an internal overflow you'd find in a reef ready tank. Next to that, the best solution is to drill and build a DIY overflow which may not be quite as pretty, but will work just as well.

If you have to use an external overflow, I also think the CPR is a good choice. They are low profile compared to most of the U-Tube models and they are VERY reliable if you use them with an aqualifter pump and keep the pump well maintained. The thing about external overflows (no matter the brand) is eventually they will fail and if you are not there to catch it, you will either have a flood, run your return pump dry or both.

If you're just starting out, you might want to consider drilling. There are lots of people in the club who know how to drill tanks. The only thing is that you'll need to do is verify that your 55 doesn't have tempered glass in the back.

-JB

 

I would have suggested drilling but being he mentioned he had a 55 gallon it's iffy as i think most are tempered throughout.

 

My vote is to just bust out the bottom of the tank and replace it with non tempered glass/acrylic. It's not that expensive of a piece and then you have the reassurance of an internal overflow...

 

I wouldn't worry about drilling the 55, or even taking the bottom glass out. A 55g tank aint worth all that work. I would just go with the CPR overflow, and then when you upgrade, because everyone does from a 55. Make sure you buy a reef ready tank.

 

http://www.aquacave.com/reef-octopu...r-984.html
I recommend this brand of skimmer.   And the DNW150 would be big enough that if you went to a 75 someday.