In article ,
wrote:
people.... all those eggs and sperm hitting the water is a huge increase in
bioload
and then it all rots and the ammonia spikes. and we arent even counting the
fish
spawning either. spring can be a HUGE water quality issue because all this
added
wastes hit at a time the biofilters are NOT fully online yet.
After a few weeks at 60+ degrees water temps, they will be online and
working.
We don't know the posters circumstances or how the pond was cared for
in the fall.
While the ammonia is an additional stress to the fish. I still
maintain that there is some disease process going on. The indication
for this is that the poster is losing just a few fish a day... not a
complete wipe-out.
jay
Wed May 19, 2004
at minimum
have a
gallon of ammonia locker upper around just in case you dont have time to do
water
changes. and aeration is extremely important as the biobugs absolutely need
oxygen
to break that stuff down. as much as I like clear water, consider that algae
is a
good waste absorber and it may be better for the pond to leave the UV off
until
spawning is over and/or the biofilter is online.
and forgodssake underfeed your fish until that biofilter is up and running.
Ingrid
joe wrote:
My test kit says that levels of 0.25 mg/litre of ammonia can be lethal. I
don't have the conversion to PPM, maybe Ingrid or someone else can chime in.
My test kit also says that "As far as possible the nitrite concentration
should not exceed 0.20 mg/litre. At a level of 0.5 mg the fish will be
adversely affected."
Both ammonia and nitrite in high levels prevent fish from obtaining and
carrying oxygen.
Also:
This is a long shot, but has your community switched from chlorine to
chloramine in tap water? The latter takes way longer to dissipate (in fact I
can't find anything that says it ever dissipates) and I'm wondering if you
use a dechlorinator? If not, you might go get a jug of amquel. It will have
the side benefit of reducing your ammonia level. Would you consider your
filters effective? Poor filtering could lead to higher nitrite levels.
Sorry, don't know much about parasites, but many others on this list can
pipe in on the subject.
Joe
On 5/18/04 2:13 PM, "ray hucek" wrote:
Joe,
Thanks for the reply.
I tested the water and forgot to give the findings in my original posting.
Sorry--
PH -7.4-7.6
Ammon-- less than 1 PPM.
Nitrite-- .25
water temp- 80 degrees
Any help would be appreciated.
Ray
"joe" wrote in message
...
What are your water parameters (ammonia, nitrate, ph, etc)?
Joe
On 5/18/04 8:51 AM, "ray hucek" wrote:
I am in need of some advice and hope you could help.
I am having a fish die-off. They are goldfish and the pond is about 6
years
old. I have never had anything like this happen before. There aren't
any
appearant signs of infection on the fish. The only symptoms that I see
are
listlessness at the end of their life. They lose their appetite.
There haven't been any plant or fish additions to the pond. The only
connection that I have seen is this-toads come to mate in my pond as in
previous years. This year, I found a dead toad floating in my pond,
which I
took out. That was about 3-4 weeks ago. Later, all of the tadpoles
died
off. There currently are more and they seem to be doing all right. In
the
past week, I have had 1-3 fish die every day. Is it possible that the
toad
carried a virus that infected the fish?
I have done a water change this past weekend of about 30%. I medicated
it
twice with a combination of formalin and malachite green. The pond is
about
3,000 gallons and has an external filtering system.
I am at a loss. None of the diseases that I have seen described match
this.
I am hoping someone will have some suggestions.
Thanks,
Ray
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