Re: Overflow comb - noisy?!?

Using "teeth" or a comb to hold livestock back can possibly backfire on you.  In
a recent issue of Reefkeeping Online, the author pointed out that teeth tend to
trap bits of food and algae, and fish will be attracted to this which leads to
them being sucked into (or they jump into) the overflow.  Better to have a
smooth edge at the top, which also prevents small bubbles from being introduced
(via teeth) into the next chamber.

To avoid the splashing sound, you want the water level to be high in that area,
but still lower than the display section.  About 1.5" to 2" lower.  Build a
"durso standpipe" in that overflow chamber to maintain the water level, and
prevent a noisy drain effect.  Use Google to look it up.

Marc


Siphon wrote:

> Hi,
>
> Just ordering a new tank and desiding on the level my internal
> overflow chamber should be built on. I'd like the water level in the
> 115g tank to be approximately 1" - 1,5" from the top of the tank.
>
> For tuning and many other usefull purposes (saving fish from entering
> the OF chamber) I have been planning on a comb placed around the edges
> of the glass overflow. I'm worried about the possible gushing
> waterfall noises the comb might make. Some 600g/h flow through. I
> ungerstand, the woter runs smoother without the comb...?
>
> What experiences you have on combs and their level of extra noise?
>
> S

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