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Discussion Starter · #1 ·
So I new this time was going to come eventually, but I never taught it would occur so soon.

The situation - I have a 4 - 5 inch Flowerhorn that has decided to claim the entirety of my 90 gallon tank to himself. This is putting serious stress on his tank mates as he will not tolerate the sight of any of them. His tank mates arent push over either (JD-Male, GT-Male & Con female) but they all get completely dominated. The fish all cower in their various caves while Grapefruit (the flower horn) swims back and forth. At times, it almost seems as if he is hunting the other fish. It has gotten so bad that the other fish will not even come out during feeding time. Is their anything I can do stop this, or do I have no choice but to send grapefruit packing? The fish are all still juvi's, and there is room for all of them in the tank, but unfortunatelly it doesnt seem like the flowerhorn wants friends. Suggestions??

Another question; I am assuming most people here will tell me to get rid of the flowerhorn. Will doing so just create an opening for another one of my fish to step up and take over the entire tank? Or will peace finally be restored to the community? (My guess / hope is that the JD would become the boss. He seems to only be aggressive when provoked, and has already established dominance over the GT even though the GT is an inch bigger) I understand the concept of territories, I just dont want another fish claiming all 90 gallons as their's.
 

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I would think a 90 Gal could make a nice home to a GT, JD and Con... I don't think you will have such problems after the FH is removed...

FH's just don't tolerate tankmates well... your situation doesn't surprise me at all...
 

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I had a flowerhorn do the same to one of my tanks a couple of years back, he hunted down and killed everything. I think as he gets older and much bigger he will get more aggressive, thats my experience anyway. with what you have otherwise I believe one will show dominance but not take over the tank as long as you dont have breeding pairs. just my 2 cents.
mike c.
 

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Yep, they can be nasty. There's not much you can do about it besides rehoming the flowerhorn or getting another tank. In a 90 the other fish you have probably won't stand much of a chance as the fh gets older, as you've already seen. If you remove the fh the other fish will probably be fine in that size tank.
 

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lol, yea this might buy you an extra 15 minutes or so...
 

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Hey... FYI - I second the notion that a GT, a JD, and a Con could co-exist in a 90... Maybe not as a forever home (a 6 foot tank would be better), but it could work for quite awhile...

I have a Severum, a JD, and a Con in a 90 and it works okay right now partly because the Sev is the benevolent ruler of the tank and keeps everybody in line (for now) without so much as a tattered fin (I hope it stays balanced - but I plan for a 135 or larger someday soon anyhow)
 

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Yeh i agree with most of the above, re arranging wont do anything worth while. Its too small a tank for its current occupants Im afraid.
 

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yea my dad's 240 is dominated by a 3.5 inch flower-horn.

My 2 cents is to get a jewel i prefer a five spot jewel ,but a regular red one will due. in my experience they always kept fish in check. i had one about a third the size of a male con take over half the tank no joke. for some reason he put on a half a inch in about 3 weeks.

yea u can always try jewels. cuz they can hold their hold,dont let fish bully them, but are not a-holes like fh.
 

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PhillyCichlidLove said:
So I new this time was going to come eventually, but I never taught it would occur so soon.

The situation - I have a 4 - 5 inch Flowerhorn that has decided to claim the entirety of my 90 gallon tank to himself. This is putting serious stress on his tank mates as he will not tolerate the sight of any of them. His tank mates arent push over either (JD-Male, GT-Male & Con female) but they all get completely dominated. The fish all cower in their various caves while Grapefruit (the flower horn) swims back and forth. At times, it almost seems as if he is hunting the other fish. It has gotten so bad that the other fish will not even come out during feeding time. Is their anything I can do stop this, or do I have no choice but to send grapefruit packing? The fish are all still juvi's, and there is room for all of them in the tank, but unfortunatelly it doesnt seem like the flowerhorn wants friends. Suggestions??

Another question; I am assuming most people here will tell me to get rid of the flowerhorn. Will doing so just create an opening for another one of my fish to step up and take over the entire tank? Or will peace finally be restored to the community? (My guess / hope is that the JD would become the boss. He seems to only be aggressive when provoked, and has already established dominance over the GT even though the GT is an inch bigger) I understand the concept of territories, I just dont want another fish claiming all 90 gallons as their's.
You want to keep the flowerhorn and get him a tankmate he cant kill, *** got one suggestion that a gave another in a different thread. If you are willing to get a bigger tank, you'd need at least a 125G or better, get a Black Shark, an adult if you can find one, your flowerhorn might tey to mess with him once maybe twice but he will learn real fast messing with a black shark is a bad idea. *** got a BS With a full grown Red Devil, the Devil stays out of his way. Black sharks are the bigger meaner versions of the red tail black sharks and can hold their own with ANY cichlid. The problem for most is that they dont have a big enough tank for em as they can reach up to 22 inches however, the Black Shark is one fish your Flowerhorn will not be able to push around, here's a video of an adult I found surfing the net, notice the size of him when the owner puts his hand up to the tank next to it:
http://myweb.tiscali.co.uk/rick.clark/C ... chla11.wmv
 

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Garbage ---Yes, black sharks are suitable tankmates for large CA. Had a large black shark with large CA 20 years agao but they definately get big and need space. Mine was insanely aggressive. I remember my BS with out much fin most of the time as it harrassed a large RBP almost non-stop. My male blackbelt too, it chased and chased until finally the blackbelt started to stand up to it rather than running from it. My BS did not mess with my female dovii or female RD that ruled this tank. FH gets its genes from trimac and RD, and I know what some female RD are like, as all of mine have been amongst the meanest , nastiest fish I have ever kept. A suitable tankmate for large CA in 6 ft. or larger tanks, and because its a non-cichlid, usually of less interest to a cichlid. But also likely, though not nessesarily, a fish that would end up subordinate to an FH.
 

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I currently have a young male "low-grade" FH ( about 7"). It is very unlikely a purebred trimac and therefore a "low -grade" FH. I first got trimacs around 1988. My male trimac killed both his siblings in a 100 gallon tank at a very tiny size with in a week of getting them. My current "low-grade" FH reminds me of my old male trimac and is similarily aggressive , but unlike my old male trimac, it did not kill its siblings ( I gave the 3 extra "low-grade" FH to the pet shop 2 months ago).
For a 90, your better off keeping the JD, GT and con. Suitable tankmates for an FH will likely require more space than a 90.
 

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Discussion Starter · #17 ·
Thanks for all the replies everyone. I ended up selling my FH to a lfs for $65 in fish credit (he is gonna try and sell him for $130)

So I removed the fish a few days ago but his effects are still being felt on the tank! :eek: Everyone is trying to establish dominance in the tank but none of the fish will stay in "open water" for any kind of extended period of time. Whats even worse is now they are all petrified of me as well :( hiding as soon as I approach the tank. Will this behavior subside, or am I stuck with a bunch of freaked out fish now? Should I add a new fish into the tank? I would love to get an EBJD for my male JD. Would that be a bad idea? Perhaps I should just get some ditters instead?

Full Stock List

1 JD - Male
1 GT - Male
1 Con - Female
1 Jewel (the small ones)
1 Big Pleco
1 small clown loach (havent seen him in 2 days) :?
 

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ohh u got a jewel eh?

i am so excited over that fish(i need 2 get a lyfe)

i say that is stocked well some dithers you could add would be gourami
 

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bernie comeau said:
Garbage ---Yes, black sharks are suitable tankmates for large CA. Had a large black shark with large CA 20 years agao but they definately get big and need space. Mine was insanely aggressive. I remember my BS with out much fin most of the time as it harrassed a large RBP almost non-stop. My male blackbelt too, it chased and chased until finally the blackbelt started to stand up to it rather than running from it. My BS did not mess with my female dovii or female RD that ruled this tank. FH gets its genes from trimac and RD, and I know what some female RD are like, as all of mine have been amongst the meanest , nastiest fish I have ever kept. A suitable tankmate for large CA in 6 ft. or larger tanks, and because its a non-cichlid, usually of less interest to a cichlid. But also likely, though not nessesarily, a fish that would end up subordinate to an FH.
I guess it depends on the shark, my BS definantly dominates my Red Devil, my jack dempsey, and everything else nasty that *** got in there. There is no question he is the king of the tank:)
 
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