I'm sorry they all died but you learned a valuable lesson on feeding & cleaning up uneaten food.
If you decide to try kuhlis again (after your tank is stable), try to wait until lfs has had them for a week or 2. Pangios often don't ship well, let the shop take the immediate losses. Look closely at them all before buying, if they don't look good, wait. No point in buying unhealthy or questionable fish.
If you decide to try kuhlis again (after your tank is stable), try to wait until lfs has had them for a week or 2. Pangios often don't ship well, let the shop take the immediate losses. Look closely at them all before buying, if they don't look good, wait. No point in buying unhealthy or questionable fish.