On Wed, 23 Feb 2005 06:37:49 -0600, "Margolis"
wrote:

"David" wrote in message
.. .
Has anyone had any experience with small fish swimming over, or being
swept over, weirs? Do they generally tend to stay away from
unexpected fast-moving currents "into the unknown abyss", or do they
instead tend to like to play with "weir roulette"? I am specifically
thinking right now of mosquito fish, but if anyone has experience with
larger fish, that would be of interest to me as well.



what is a weir?

If you are talking about an overflow box for a trickle filter, small fish
get eaten by them all the time. You can put netting around it to help. I
use the blue bonded filter pads in mine. I cut them so that they can go
into the skimmer box and block the openings. An added benefit is all the
crap it catches that helps with the prefilter maintenance.

Hi Margolis, I think we are talking about generally the same kind of
thing. For me, a weir is like an overflow spillway on a dam, to limit
the height of the water's surface. Your description sounds like it
might be applicable to what I'm trying to do, but I cannot picture it.
Would you have a make and model of your filter and skimmer box, so
that I can look up a picture of it? Thank you.