Insert angel theory here...

[79chopperdr]

I've kept a Potters angel and a Flame angel peacefully for about 16 months. Today they seem to be engaged a battle royal. It's been months since I added a fish. If it doesn't smooth out quick I'll have to see which one I can catch.

Just curious about your guys theories. I'm stumped.

 

[79chopperdr]

DT is a 210 btw

 

[snorvich]

Very surprising, no theories. In a small tank, absolutely. What other fish are in this tank?

 

[Dmorty217]

Very surprising, no theories. In a small tank, absolutely. What other fish are in this tank?

^This, have you changed feeding schedule or foods? Taken rock work out? Has anything changed?

 

[Marshall O]

How old are they? Maybe they have each reached maturity and are trying to establish dominance?

 

[79chopperdr]

No idea on age, both are similar size close to 3" No change in routine. Only tank change was change in lighting. Switched out supplemental T5 bulbs. Had giesmann atinic plus and put in ATI atinic. New bulbs are more purple looking. They bring out the yellow in the flame angel, in my version of color

 

[79chopperdr]

Other fish are a couple tangs, a few wrasses, clowns and 3 genicanthus. I never notice them really interact with the fish at all

 

[A sea K]

Thinking back I had the same thing happen to me which is nearly identical to your situation.
210gal display, a mix of tangs ,wrasses,pair of clowns and other misc fish along with a Potters and Flame which had all resided peacefully for better than a year together. I came home one day to find a badly battered Flame angel and one very peaved Potters. I thought for certain the Flame was done for but all the aggression ended that day, the flame made a full recovery and once again the two were completely friendly.
I was never able to find out what triggered this episode and like you, I could not think of any changes or additions that might of set them off.
I hope your two have already settled their problems and tomorrow will be a better day.

 

[79chopperdr]

Potters seams to be the aggressor here too. I hope I don't have to take them to counseling!!

 

[79chopperdr]

Back to normal like nothing ever happened today????

Fishes be crazy!:uhoh3:

 

[79chopperdr]

Angel fish are retarded :deadhorse1:

Exact same scenario, this time the two larger female Wantanabeis were going after the smallest one like they wanted her dead.

Tried for a couple hours to catch the victim yesterday, no luck.

Today all three swimming together like nothing ever happened.

All three are female, been together for at least a year.:fun2:

 

[zooman72]

I have come across reports of aquarists changing lighting in some form, with a resultant change in fish behavior - it seems that even minor changes in lighting can result in fish "looking" different to one another, which can result in previously accepted cohabitants of the territory (i.e. the aquarium) now being attacked...

Just food for thought...

 

[ThRoewer]

The issue is that most people keep angles as singles or just one of each species. In the wild they almost always live in pairs, harem groups or schools (H. passer for example).

After figuring out that you can easily keep them in pairs or harem groups, I always kept them that way and never had any issues with them. Though that way you can usually only have one species per tank, unless your tank is large enough. Their German name is Kaiserfisch - emperor fishes - and having more than one emperor (and his wife) in the country/tank usually leads to war.

All the notions that they need to be kept single are outright utter nonsense. The opposite is the case: you shouldn't keep them unless you keep them in pairs (large and dwarf angels) or harem groups (dwarf angels and some large).
That way you will have less abnormal behavior (like swimming like crazy in circles) or coral nipping.

At least that's my experience with them.

 

[Deinonych]

The issue is that most people keep angles as singles or just one of each species. In the wild they almost always live in pairs, harem groups or schools (H. passer for example).

After figuring out that you can easily keep them in pairs or harem groups, I always kept them that way and never had any issues with them. Though that way you can usually only have one species per tank, unless your tank is large enough. Their German name is Kaiserfisch - emperor fishes - and having more than one emperor (and his wife) in the country/tank usually leads to war.

All the notions that they need to be kept single are outright utter nonsense. The opposite is the case: you shouldn't keep them unless you keep them in pairs (large and dwarf angels) or harem groups (dwarf angels and some large).
That way you will have less abnormal behavior (like swimming like crazy in circles) or coral nipping.

At least that's my experience with them.

Interesting. I've always wanted to add a Centropyge sp. angelfish, but haven't because they are notorious coral-nippers. Has anyone else observed coral nipping decrease/go away with pairs?