[Pomme]

whats the quietest weirs?
whats the quietest weirs?

i have just had my newe tank up and going for about two months, but may in the future get a bigger, its always the case, tank. And for that i was wondering what would be the best set-up fo it be silent!

just like to know so i have it and when i want the new tank will be able to go and order it without having to do the research then.

I would like it to be say 100" by 24" by 40" high, how would you guys do?

and what would you do for circulation as i would also like now powerheads in the tank, would you have closed loops coming back in to the back of the tank.

thanx andrew

[Ninong]

Andrew,

Check out this guy's solution to overflow noise:
http://www.rl180reef.com/frames.htm (Click on Durso Standpipe.)

That's what I use in my corner overflow compartment and it works. The trick is to adjust the standpipe so that the water level in the overflow compartment is very high -- ideally you want only about a 1" waterfall.

Are you sure you want a reef tank that is 100"L x 24"W x 40"H??? That sound more like a fish-only tank. I think you would be better off if you had more width relative to the height. I would love to have a reef tank that is 40" high, but only if it was at least 40" wide, too.

I don't like powerheads either. I use two 3/4" Sea-Swirls as returns: http://www.sea-swirl.com/ I tried one of the Tunze Streams but it was just too powerful for my little tank, especially with my fine particle deep sand bed. However, the Tunze Streams would be a viable option to consider on any large tank. http://www.tunze.com/

Another good option would be to add a closed loop on a separate pump in addition to your main system return pump. For a really large tank (375+ gallons), I think this is the best way to go, especially with a motorized ball valve to alternate flow.