I certainly would not place any detergents, chlorine etc into it as a
means of preventing mossies. If it was mine, I would drain it, and
clean it thouroughly, find the leak, fix it, and take stock of what is
actually in the tank in regards to filter, pump etc. If its in the
house and built in the floor, that leaking water is going somewhere
and probably not doing whatever its getting to any good. You never
gave a dimension on the ponds actual depth.

On Fri, 11 Mar 2005 11:37:02 +0800, "Wylie Wilde"
wrote:

===Keeping tropical fish does seem an attractive and relatively inexpensive
===proposition.
===
===However, as mentioned, the pond is very shallow, being only a few inches
===high during operation and is furthermore covered and saturated with river
===rocks. They serve to cover the bare concrete floor.
===
===There also appears to be a leak somewhere which prevents us from keeping 80%
===of the water in the pond. You can try filling it up to 100% but you need to
===keep pouring it on.
===
===Having said that, the remaining 20% of water stays there in a comfortable
===state and does not drain away. The pumps being underwater appear to be
===working and operating even in such circumstances.
===
===I'm trying to locate the leak at the present, but in the meanwhile I thought
===that placing some extra chlorine or perhaps herbal oil or even cheap lemon
===detergent into the pond to discourage mossie breeding.
===
===If I may bother you denizens for some commentary on my actions, I'd
===apprecate it.
===
===Cheers,
===
===Wilde
===


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Put some color in your cheeks...garden naked!