My fish order canmee in yesterday.Most of the fish were in excellent shape One ange lfish I thought was DOA actually was moving it's fins so I seperated it out and have a bubble wand providing aeration to it. I've done a couple water changes and it made it through the night. It's gills are really red, but hte little guy has spunk. What more should I be doing for it ? Is there really a chance that it will pull throughThe other angel has really red gills too but is able to swim upright and avoid the intake tubes.