Kuhli Loach problems

[chipchop]

I seem to be having a problem with these guys. As some of you know, I had some significant newbie cycling issues, but I am thrilled to say that overall my tank is doing well and I think the numbers are fine. Numbers are as follows:
Ammonia 0
NO3: 5ppm
NO2: 0
GH: 100
Chlorine: 0
KH: 80
PH: 7

Tank has been operating for 3+ months and I havent had a fish die since my cylce issues over a month ago. (I went through a bad spot because I started the tank with like 9 fish - bad advice from LFS and not enough reading up front).

I recently added 2 kulhi loaches to my tank and something is seriously wrong. They are curling up in a ball, head is cocked slightly on one and bent on the other, and they writhe around the tank. Honestly, they look like they are dying, which bums me out. I think I should remove them.

Any thoughts? I read on loaches online that they are sensitive to new tanks.

Does this mean they are dying? If so, any ideas on more hardy replacements?

 

[p3purr]

Pangio kuhlii like well established tanks and do a lot better in planted tanks.
Here's some info:
Kuhli Loach (Pangio kuhlii) — Loaches Online

Your waters soft so that's good for them.

I've had a kuhli get a head cock before and it didn't make it. I wasn't sure that mine didn't have an injury, he'd slowed down a bit for the 48 hours prior. I find they're a little delicate sometimes, especially for the first few months in the tank.

 

[chipchop]

I found one belly up this morning and the other fish had eaten part of him. The other guy seems to be gone - must be in the substrate somewhere. Not a pretty site.