I have had school of 6 neon's in my 10 gal tank for about 2 weeks they are active and school just fine the other day 1 of them went solo not all the time just some of the time. now they are chasing each other around the tank some times they circle each other and go from the top to bottom than break away. at times they swim next to each other almost touching.they don't seem to be hurting each other. is this normal
the tank also has about 20 or so cherry shrimp who are healthy and reproducing but the tetras don't even acknowledge their existence
