Could it be that a tank with no substrate is throwing a reflection and disorienting the fish? How big is the tank? Are all the fish swwimming on their sides? What filtration are you using? Just going through possibilities...
fish repo
- Thread starter friendorfoe
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Seaman
Shrimp gumbo, shrimp salad etc...
I wouldnt be surpriesed if it was OTS (Old tank syndrome) where the gh kh and TDS (total dissolved solids) gets sooo bad with no water changes that when you do change the water or move them to a different tank they are so stressed because of the different water quality that it hurts them.
Does anyone have more info on this "old tank syndrome" it sounds like the most possible thing yet...
It's usually associated with poor maintenence in the long-term. Instead of doing water changes regularly, the keeper simply tops off the aquarium with tap water to fight evaporation. In the meantime, dissolved solids accumulate b/c water is added without being removed, and pH gradually drops due to bioacidification.
Doing a decent water change then results in shock to the fish, due to changes of pH and TDS.
Doing a decent water change then results in shock to the fish, due to changes of pH and TDS.
This was the first thought I had, but PH should not be the same unless chemical buffers are being used regularly. I wouln't rule it out, but I am skeptical due to mathing ph numbers.
As with many things RTR wrote a fine article on OTS http://www.aquasource.org/CMS/modul...ons&file=index&req=viewarticle&artid=7&page=1
Dave
Seaman
Shrimp gumbo, shrimp salad etc...
daveedka said:
I did notice the same thing about matching ph, do you have any limestone or other ph altering variables? If so that may be helping the ph stay higher, but you might still be suffering OTS.
