Geophagus,,,why why why

  • We are currently upgrading MFK. thanks! -neo
No you didn't say you put them together but your initial post was ambiguous as to just where the fish went. Very first question in my mind was so does that mean he put them together or is he simply listing all the fish he brought home? It's an obvious and natural question since it wasn't clear from your post. No offense meant, but your first thoughts naturally go toward eliminating the obvious (or the basics like water conditions) as possibilities and moving on from there.

Don't see anything obvious wrong with your water. Temperature a bit on the cool side, maybe. pH ok or could be higher with no problem at all. Geos like good water quality but red humps not especially sensitive for a geo. Without knowing exactly what your nitrates are but assuming they're good, my next thoughts are:

How long was the trip home, how where they bagged, could the water have gone south in their bags, whether ammonia, temperature, oxygen, etc? How much difference in pH, temp, etc. between water they came from and water they went into and how did you acclimate them? Are the same fish in the store still healthy or are they having problems also?
 
MonsterFishKeepers.com