Flowerhorn attacking - What Do I Do?

So I currently have a 130 gallon with a 40 gallon sump. I had 4 main fish in there: a 10 inch oscar, a 7 inch oscar, a 7 inch blood parrot, and a 4 inch flowerhorn. That 10 inch oscar was always at the top of the pecking order and kept my flowerhorn in check but a few days ago he jumped out of the tank and passed away. Now that he is gone my flowerhorn has no one to keep him in check and he is starting to beat on the other fish. This concerns me as that other oscar has never been one to fight back and that blood parrot can't because of his deformed mouth. I plan to do some observing over the next few days but if there is indeed a problem here are my only options:
- Bring the flowerhorn back to where I got him (I have never done this and would hate to do it)
- move all my community fish from my 55 to my new 29 and let him have that tank to himself

Which one do you think would be better for him and what is the likely hood there will be problem? Thanks

 

Oh boy.. I almost think you will have to put the flower horn on his own. I heard a few horror stories about how they don't play nicely with other fish... What is n your community tank??

 

In my community tank (I am including the fish that are in QT right now) I have these:
- 3 mollys
- 2 swordtails
- 1 angelfish *baby
- 1 blue goramie *small
- 1 redtail shark *Not full grown
- 5 cherry barbs
- 2 silver dollars *Small
- 1 danio
- 2 glo tetras
- 2 cory cats
- 2 serpae tetras
- a few ghost shrimp
- 1 farrowella catfish
- 2 yoyo loaches

I know its a lot but I would be willing to do 3-4 water changes a week.

 

I definitely would not move them all to a smaller tank, I imagine you will start seeing aggression if you do.. can you get another tank??lol

 

I just checked prices at my LFS and I can get a 40 gallon breeder for the flowerhorn for 160$ Is this a good price (That price includes filter, heater, and tank)

 

that's a hair pricey.. but its about the goin rate, I mean I know just the tank (no stand no filter nothing else) at petco for a 75 is about $180 I wanna say the 40 breeders are like 120-140ish.

 

I would check Craigslist. Should get a 55 or 75 for about $100. The problem with that 40 kit is the filter and lighting are not good enough for the tank. May get lucky and get a filter with tank on Craigslist.

 

I found a 40 gallon breeder for 80$. I have it set up, I put in already cycled filter media and water from my big tank and the flowerhorn was just moved in like 5 minutes ago.