I bought 6 glow light tetra's tonight and put them in my tank (75 gallon) in the store the fish had a pretty orange stripe, but in the tank the stripe is pretty much nonexistent, could this be my lighting? running 2-48" t5 HO's.
I'm not too familiar with tetras, but some fish lose their color when stressed, like moving them from one place to another. Once they've been in you tank a while their color should come back, but this is just a guess from my experience.
5 zebra danios, 10 rosy red minnows, 5 white cloud mountain minnows, 6 ghost shrimp, many many red cherry shrimp, 2 platies, different types of swordtails, killifish, goldfish in the pond, goldfish fry, 2 koi, 5 butterfly koi, many guppies, and maybe in the future some P. saulosi