Um, yes, lol. I don't recommend doing it though. Achilles are sensitive enough, both to tank conditions and ich, any stress can make them quickly get sick and die, often taking other fish in the tank with them. Sorry, just had to say that, I'm sure you know it but I don't want someone to see that pic and throw two of them together thinking everything will be OK. Both mine are young, and I've trained them to eat pellets/mysis so they're super fat and healthy. If they do start fighting (very rarely now), the uberfat sailfin tank king gets mad at both of them and breaks them up to chase each of them himself LOL.