Fish Aggression & Stocking

[jacobreynolds6883]

Hey guys some advice needed to recent aggression within my system. Back history tank is a Pro Clear Prostar 60 which is a 42g display with sump. Current stock bicolor Blenny, 2 Firefish, 2 Clowns, Talbot Damsel. All about the same size 2.5-3.5” and plenty of rock work/coral to fill tank (picture attached). For months the Talbot has been a model citizen and just recently started chasing the Firefish from their burrow sleeping area and the clowns from the water column. No nipping that I can see to their fins that I have seen.

I see I have 3 options at this point and advice would be nice.
1. Leave them and observe for any actual harm to the other livestock?
2. Pull the Talbot and trade in at lfs?
3. Add another fish that could calm his nature (what species)? With this option I was planning to add atleast 1-2 more to the tank to finish stocking.

 

[jacobreynolds6883]

 

[JumboShrimp]

Talbots can be hit-or-miss when it comes to to what extent they might develop a 'must defend my territory' mentality. Lol. Since the behavior just started, I might ride it out and just keep observing for a week or two-- unless, as you mentioned, you actually see damage or severe stress being caused to other fish. But you know best... you have the eyes on the situation. Keep us posted.

 

[Mr. Mojo Rising]

I have had fish be fine together for more than 3 years, then suddenly it starts out of the blue. Looking at your tank, its very beautiful, but I don't see any closed spaces for fish to hide, its a wide open rockwork. IME both firefish and damsels like to hide in the rocks, if they can't hide, then IMO you will get abnormal behavior. Perhaps adding more rocks to the base near the sand to create nooks and crannies for fish to hide might help, IDK, good luck