After reading up on many fish for a few months before I actually got my tank & adding fish my 'fav' has changed. I used to be atracted to the actual look of the fish & its behaviour, but now it is more to do with its movement. My first fish where 5 pearl danio's. These are as hard as nails & easy to look after but move far to rapid & are not at all relaxing to watch. Saying all that I would still find it hard to part with them.
hmmmmm tuffy.......marine would be a clown fish especialy percula and the purple firefish. freshwater would be....ummmm.......cant decide like almost all freshwater fish....my fav fish that i own though is my DP which my mom calls puff the magic dragon for some reason. coldwater would be koi......event though i dont have one.....lol