Kuhli loach weird behavior?

[Barry Tetra]

Smallest tank size is about 18 inches long x 10-12 inches wide x 10-12 inches high.

What is the GH and KH of your well water?

I only have a 15 inches long 13 inches wide and 12 high tank left. I have to wait till Tuesday to get the gh and kh test reagant because LFS is so far from home. Also pH is 7.5

 

[Colin_T]

They will be ok in that tank for a little while but long term, they need a bit more space.