Here is my other 2 cents The over the side over flows are fine as long as you drill them and have a siphon nipple put on attach to a power head or a aqua lifter to. This will always keep any air that may accumulate in there out. If power outage happens then when power comes back on the air is siphoned out never over flows and never fails.

I went straight to a Aqua Medic Multi T1000 works great and is rated up to 250g tanks I still use it on my 110g with 40g sump. Aqua romera's are mid range skimmers and work good for the price but if you have a bit more money then go with the skimmers that are the best. An redSea, Deltec and Aqua Medic, there is another that I can not remember right now. Anyways those are the ones I would recommend unless you can not afford the price of these units I would say go for a Romera Pro. I would also say on a large tank I would definitely have a skimmer as it's a pita to do the amount of water changes that would be needed and not worth it. There has been a couple of Aqua Medics multi's come in on here in and around Calgary over the last 6 or so months do a search and see if they are still for sale. Mine take thick black smelly skim out of my tank. I have a pic on photo bucket of the stuff. In the end it is your choice and up to you as to what you get and use.

here is a link for a Red Sea Berlin:
http://www.marineandreef.com/Berlin_...p/rrs50055.htm


These skimmers have been around for a long time and have been improved most skimmers these day are based on this form of skimming. Down draft skimmers are very good at what they do.
Bill