Finally my aquarium cycled and I added a few neon tetra initially. Water parameters stayed good, so two weeks later (yesterday) I purchased some additional neon tetra. I did not turn the aquarium light on until this morning and discovered that one of the fish I bought yesterday is not a neon tetra, but I think it is a head and tail light tetra. My question is: do I need to get a couple more of this type tetra (I am not fully stocked) or will this one be okay with the neons? Thanks for your opinions!