Re: Problems

[mjacobs2@tampabay.rr.com]

Folks.......IF....that's a big if......you had just lowered the TDS of the tank 
water then it could have been that you lowered the TDS or the hardness of the 
water too quickly.  Thusly gill problems....the lack of oxygen.....sure signs 
of what used to be called pH shock........we now know that there is no such 
thing as pH shock, but rather it is a "blowing out" of the gill cells that 
could cause the resperation problems in the fish ending in death.  But if there 
was no water change.......no influx of say straight RO water then this is not 
the problem.

Everyone is guessing here and I thought I would also muddy-up the waters as 
well.....;-).....just kidding we are all just trying to help.......someone will 
hit it sooner or later!

Mike



> In a message dated 23/10/01 12:40:19 GMT Daylight Time, 
> pete.liptrot@bolton.gov.uk writes:
> 
> > What is happening is that every so often one fish will, over the course of
> >  only 24 hours, stop feeding, go up to the top, start gasping and then die.
> >  These are remarkably similar to the problems that Chris (Jewell) was asking
> >  about, except that these fish are going to the surface rather than sitting
> >  on the bottom.
> 
> I've had similar problems recently with A. atahualpa and A. meinkeni.  The 
> first time I put it down to old age as alpha fish seem to be affected first.  
> There is a common source of these fish. 
> 
> Initially the fish stop feeding, laboured breathing and generally looking 
> miserable and either gasp at the surface or get tangled in aquatic plants 
> then die.  I suspected nitrite poisoning, but checked water conditions as 
> NH4, NO2 both zero, NO3 < 5 ppm, pH 5.8 - 6.0, DH < 0.5
> 
> The first fish, an alpha male atahualpa died 36 hours after the onset of 
> first symptoms; post-mortem (binocular dissecting microscope X10) revealed no 
> gill parasites, but the gills were somewhat engorged and slimy.
> 
> When the next fish (an alpha female atahualpa) showed symptoms she was 
> transferred to a 'high oxygen' quarantine tank with a trickle tower returning 
> the water and a temperature reduced to 76 F. She survived for 4 days, but 
> succumbed to a localised bacterial infection - evidenced by raised scales 
> below the rear of the dorsal and tissue damage.
> 
> The next fish went straight into the 'high oxygen' quarantine tank, and was 
> treated with myxazin to lower the bacterial count, but 3 days later a sore 
> opened at the base of her tail, the rear of the body had raised scales and 
> she died.
> 
> Since then, I've noticed that whatever you treat for, something else will 
> start, its almost as if this is an immune deficiency disease.  I have had 
> other dwarf cichlids in the tanks with fish I've lost, but at present they 
> don't seem to be affected - I'm trying to put a cordon sanitairre around this 
> though - I am not selling or giving away any fish at the moment.
> 
> Alan W
> 
> 
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