Midas Blenny Bully

[Psychonaut]

so in my 20gal QT tank I have 2 o. Clownfish a royal gramma and a Midas blenny. The MB is the largest fish in the tank. I noticed the MB and RG getting into it a couple weeks ago, so I noticed the MB had a huge bite taken out of him, and the RG was missing large parts of his fins and I put the RG in an acclimation box

That was about 10days ago. Today I decided to free the RG and sat next to the tank for about 30 min to see what happened. I watched the Blenny come off his little perch time, after time, after time and attack every single other fish in the tank. Both of the clowns would do a little shake thing after he bit them. So I captured the Blenny and put him in the box

Does anyone have any suggestions for me? They are all going into a 120gal as soon as the cycle is done. Should be another week or two. I have already had them in QT for 5 weeks and treated with prazipro and copper, I’d hate to have to get rid of him. You think he’ll chill when he gets into the 120DT?

 

[Frtdrmrose7]

I think he would be ok as long as you. Get him to eat in the box. I think the aggression will calm in the larger 120G tank and being the bully I would probably add him last and a couple hours after everyone else so they can find their spots first.

 

[dugthefish]

Seems like a lot of semi aggressive fish in a very small tank.

 

[Psychonaut]

That was meant to be 2, ocelarus clownfish (both 1”) a 1.25” RG and a 2.5” Midas blenny. Is that really too much for a QT cycle?

 

[Jesterrace]

All at once? If so, then yes. Kind of defeats the purpose of QT when you put that many fish in the tank at once. Most don't put more than a couple of fish in QT at a time.

 

[eatbreakfast]

The number of fish can be fine for qt, but the personalities of all 4 is that they each want their own territory that they will defend, so those particular 4 can be problematic in a 20g. When they get to the bigger tank there should be plenty of room for them to all spread out.

 

[Psychonaut]

Ok cool, lesson learned. I guess I was thinking since I was treating them all anyway, it wouldn’t defeat the purpose.

Well hopefully this thing will be done in a couple days and I can start separating them