Kuhli loach had seizures and died

[corn_pea]

I just purchased 8 kuhlis >48 hours ago and all of them are normal except one. He was laying on his side when I got home and then he had a seizure and stopped moving. he was still breathing after the seizure and then he had another one and passed away. Normal parameters (0 ammonia, 0 nitrite, >20ppm nitrate) and ph of 7.6-8 (they are captive bred kuhlis). Any explanation or advice?

[corn_pea]

29 gallon heavily planted with ample amount of hiding spaces, lights are on for >10 hours daily, tankmates are 4 platys, 2 rams, 5 corys and 7 kuhlis. Did a water change before I put them into the tank. I acclimated them for 40+ minutes, floated the bag and slowly added tank water to bag. Fed them tropical flakes and frozen bloodworms. I have 2 sponge filters, one is for 30 gallons and one is for 80 gallons.

[dcutl002]

corn_pea, it sounds like the fish was sick before you bought it. There is a lot of fish handling before arrival at the pet store.

[corn_pea]

Originally Posted by dcutl002

corn_pea, it sounds like the fish was sick before you bought it. There is a lot of fish handling before arrival at the pet store.

Update, almost all the loaches have died, only 3 remain. Reddit thinks it was a bad batch because there’s nothing alarming in the tank. I am buying HEALTHY adult kuhlis from a reputable source now. Such a shame my LFS would even sell these to me knowing they were bad. I’ve bought good healthy ones from there before but their quality has declined. When I bought them they were pale and almost bloodshot red and now the remaining 3 are very pale. I have a very large one and 2 babies left