Can a Synchiropus splendidus and Pterois voltans live together? I have a small, about 1,5inch Mandarin fish for about 3weeks and yesterday I put a small (a body of about 4inches) lionfish in a tank of 66 gallons. The lionfish was just calmly sitting in a corner..eating only the small guppy I gave to him and just looking at the mandarin when it was passing by him. do you think that there is a chance for my cute mandarin to be eaten by the lion? And does he know that the mandarin is venomous and that's why he is leaving it?