I believe my bosemani rainbowfish is ill, they have a curved spine, I originally suspected . Overall they seem perfectly healthy otherwise (eating normally, schooling with the others). I noticed some of my kuhli loaches losing weight and my hillstream loaches a bit pale so I’m worried it may be a parasite. It’s a 38 gallon tank with 2 bosemani rainbowfish, 8 kuhli loaches, 6 young dwarf neon rainbowfish and 6 hillstream loaches. My first thread sorry for being all over the place but I’m a bit freaked out.