Aggressive fish separation emergency advice

[Stoichiometry]

Hi, I have a clownfish that's lived peacefully with my firefish in a 20 gallon for 2 years and all of a sudden this morning I saw extreme aggression and most of my firefish tail is missing. the clownfish won't let it back down in it's cave. I have a thrown together a quick separation tank based on what's on hand at the moment but it's only 6 gallons.

Would the clownfish be alright in a 6 gallon for a few days until I find a rehome option? I'd rather not try to stick the firefish in there and cause it more stress. I have some extra dry rock that I placed in there along with some live rock rubble from my sump to help seed it and used tank water to fill. Just a cheap HOB filter, heater and acrylic petco tank setup.

Anybody had luck separating and re-introducing clownfish to help with aggression?

 

[Tahoe61]

The clown will probably be fine in the 6 gallon until you figure it out. I don't think you will be able to reintroduce the clown. The clown might be fine for a short time after reintroduction but it's a clown, once they reach maturity they can become extremely aggressive.

 

[winxp_man]

Yes they will be fine. I had 4 at one point for quarantine in a 10 for 5 days. Basic filter heater, and meds. They where just fine. So for a coupe of days yes the clowns will be good. Also this sounds like my brothers tank. One of my other brothers had a great idea to go surprise buy a flame angle. Then he puts it in a 40 with two of my tank brothers Black Ocy’s. They killed the guy by the time he was removed. Clowns can be some nasty guys if big enough and if more than one. :grimacing-face: