As long as your getting a continous flow of water through from a
brook, it could possibly also be introducing nasties from a source
upstream of where your diverting the water from.....I ofund that a
nutrient rich water is a good breeding ground for nasties in koi and
GF. Seems natural game type fish like bass and bream can tolerate it
but the ornamental tpes don;t fare as well in it. It may not be a bad
idea to check the water for nasty organisms, as you really never know
what may have gotten into it at some time or other.

On Wed, 10 Aug 2005 13:51:31 -0400, "gunnar"
wrote:

===It has a liner but it flows through to brook. I lined it due to heavy mud
===which fish would stir up cutting view of them. I have had this set up for 3
===years and never a problem. should i have water tested.
==="RichToyBox" wrote in message
...
=== Is your pond a true natural pond, mud bottom and flow through fresh water,
=== or a pond made to look natural, but completely recycling the water? I
=== think that we need to know this before we can provide useful feedback.
=== --
=== RichToyBox
=== http://www.geocities.com/richtoybox/pondintro.html
===
=== "gunnar" wrote in message
=== news:J58Ke.111759$rb6.66745@lakeread07...
===i am having problem with fish getting ulcers in tail what could be causing
===this . pond is natural gets water from brook which then flows thru two
===ponds pumped thru Laguna filter then back into brook.
===
===
===
===


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