Will my established Y Tang bother a new Diamond Back Goby?

njbillyv

Member
I have an established 75 g. tank that has had a Yellow Tang and two Yellowtail Damsels that have been together in there for three years. I know there may be an issue if I add another fish so I was thinking perhaps a bottom dwelling fish would be safe.
So do you guys think it would be safe to add a DBG?
I'd really appreciate your opinions.
 

bang guy

Moderator
There's just no way to know which is why you're not getting a lot of response. I would say the YT will probably not bother the Goby at all. I think it would be a good addition as long as you don't have a deep sand bed.
 

wartooth1

Member
Like others have said there is no 100% way you can know how fish are going to behave when a new fish is added to the tank. Even fish that are listed as being friendly and compatible according to the charts may fight (its all just depends on each individual fish's personality).
Having said that, I also have a Yellow Tang, a Yellow Tail Damsel, and a Diamond Back Goby and they all get along just fine. I wouldn't worry too much about the Damsels and Tang fighting with the Diamond Goby, since the Goby will spend most of it's time on the sand while the Tang and Damsels swim higher up in the water column.
If you want to maximize your chances of a peaceful acclimation, when your ready to add the new fish to the tank, feed all the fish thats already in the tank and turn off the lights, that way all your fish will be full of food and sleepy when you put the new fish in.
Even still the fish in your tank might try to assert their dominance over the new guy, but that's normal and should come to a stop in a week or so.
 

njbillyv

Member
Well I added the DBG yesterday and my Yellow Tang and Damsels didn't even notice him. Score! He went right to work on the sand and all's well. I'll be keeping my eye on things but so far so good.
 
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