why is my neon tetra line blue

[murad]

all my neon tetra lin turned greenish colored but still active temp 76 10g tank 3 neon tetras with other social fish ammonia 0 nitrt is safe ph 7.4
fish food is nutrafin max also bloodworm

 

[siva]

Hmm some neons are green and some blue, so it may just be their actual coloring coming out. I keep a school that is about half blue and half green.

Neons are schooling fish that should be kept in groups of no less than 6, I think 7 is even better for them. Depending on what fish you already, have since a 10 gal is pretty small, you should add more neons.