I just started a 30 gallon tank & have two damselfish in it now. I want to add two clownfish in the near future but am confused as to if they will co-exist. One fish store told me to take the Damsels out as they will kill the Clownfish at some time. They suggested I replace the Damsels with some Gobies instead. So far three stores and three different opinions. Thx Toodler

In the tank sitting behind me i have 2 clowns and 1 blue damsel and 1 yellow tail damsel, i did have 3 clowns in there but one was a victim of gang violence(the one i was babysitting)

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Damsels are the s fish. Nice when they are small once they get older they will get very territorial. They will bite you and anything else they feel like.

my fish store said just get clowns to start out with if you get damsels your gonna hate them there not pretty and they are aggressive. might as well start with a fish you want.....

I have a female blue damsel in with two percula tank raised clown's and I haven't had any trouble from my damsel, I would put My success down to having plenty of live rock for the damsel to dominate as her territory.. coupled with the fact that the clowns spend all there time out front showing off and never venturing into my damsels territory.
Well that's My experience with clown's vs damsel. hope it helps.

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I have 3 Yellow tail Damsels, they think they own the entire tank. I added 2 small clowns about a week ago. The damsels gave them a hard time for a few hours until the lights went out but the next day everyone OK with the change.

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110 Gallon FOWLR with sump and refugium.
1 Dog Faced Puffer, 3 Blue Damsels, 2 Maroon Clowns, 2 Ocellaris Clowns, 1 Blue Tang, 1 Coral Beauty and 1 Convict Goby. Lots of snails and crabs.
Deep Sand Bed and 75 Lbs of Live Rock (how do I know the weight of the rock? I used the SWAG system. If you don't know what that is PM me and I will explain)

i have 50 gal tank. had dominoe damsel and 2 percula clowns, along with tang. got along fine, until a fish so screwed up, ( it got ick, fin rot and sumthin wrong with his eye all after we bought him) came in and died along with my dominoe. this was 1 1/2 years ago.

Damsel get along with no one, not even their own kind.

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Damsels are more active swimmers than Clownfish but are usually more interested in finding food than in bothering tank mates. Make sure youe tank has plentry of hiding places. Damsel fish are very territorial with each other but not often with other fish. I currently have three small clowns with three Damsels (one 4 inches) and they ignore each other.