Aggressive Rainbowfish? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 13 Old 11-13-2008, 05:37 PM Thread Starter
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Question Aggressive Rainbowfish?

about a week ago i bought a pair of Boesmani Rainbows for my 20g tank on the recommendation of my LFS owner (who i would trust completely, hes been in the hobby almost 40 years). the past couple of days i noticed that one was getting kind of bullied by the other, and now it has a chunk of its tail fin missing, which could only be from the other rainbow. any suggestions on what i can do to help lessen the aggression?

their tankmates include:
6 Black Phantom Tetras
2 (soon to be more) Kuhli Loaches
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post #2 of 13 Old 11-13-2008, 06:03 PM
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I always go by my "Fish Bible" for on the spot advice of tank size and it reads that I good size tank for these guys is 75G. Now I realize this may sound way too generous of a size for just two of these them but maybe that's your problem. I had a similar problem (aggression) with my two Angels; the bigger one was picking on the little one. What I did was buy a few more and it really seemed to spread out the aggression from the dominant Angel and all is well now. Maybe you need a few more being that it's a schooling fish & the 75G my book talks about is compensating for the number of fish recommended.

I am another soul happily lost to the aquarium addiction..

150gal freshwater
7 Angels (2 marble, 1 blue diamond, 1 leopard, 1 not too sure & 2 Koi)
10 Serpae Longfin Tetras
6 Congo Tetras
2 Clown Loachs
2 Gold Gouramis
1 Dwarf Blood Gouramis
1 Blue Gourami
1 Moonlight Gourami
2 Baby Hypostomus plecostomus
1 Grey Bichir (4 1/2" - 5 ")
1 Crab
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post #3 of 13 Old 11-13-2008, 07:23 PM Thread Starter
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ok thanks. ill talk to him about it when i go in to get some more loaches i guess, unless anyone else has some input.
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post #4 of 13 Old 11-14-2008, 01:49 AM
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Hmm...well, even if he's experienced, I'm not sure what he was doing telling you it's ok to have bosemanii rainbows in a 20g tank. They get to be pretty big and are fast swimmers so they should really be in at least a four foot tank. They should also be in a larger school of six or more fish.

4 8 15 16 23 42
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post #5 of 13 Old 11-14-2008, 10:32 AM
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Quote:
Originally Posted by iamntbatman View Post
Hmm...well, even if he's experienced, I'm not sure what he was doing telling you it's ok to have bosemanii rainbows in a 20g tank. They get to be pretty big and are fast swimmers so they should really be in at least a four foot tank. They should also be in a larger school of six or more fish.

This is something that I forgot to mention, they get to be about 5.5 - 6" might be cramped for them... Maybe some Dwarf Gouramis might be an idea, they are equally as nice in color but grow to about 1/2 the size. A pair of them should do fine in your tank to the best of my knowledge. I was going to suggest Ram Cichlid's but I dont; know if the water parameters will go well with your other fish..

I am another soul happily lost to the aquarium addiction..

150gal freshwater
7 Angels (2 marble, 1 blue diamond, 1 leopard, 1 not too sure & 2 Koi)
10 Serpae Longfin Tetras
6 Congo Tetras
2 Clown Loachs
2 Gold Gouramis
1 Dwarf Blood Gouramis
1 Blue Gourami
1 Moonlight Gourami
2 Baby Hypostomus plecostomus
1 Grey Bichir (4 1/2" - 5 ")
1 Crab
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post #6 of 13 Old 11-14-2008, 07:41 PM Thread Starter
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well, they might not be boesmani rainbows after all. i just looked them up on live aquaria and those look nothing like my fish lol. ill try to get some pics up so hopefully i can confirm/disporve they are boesmani and then go from there.
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post #7 of 13 Old 11-14-2008, 07:58 PM Thread Starter
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heres the fish
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post #8 of 13 Old 11-15-2008, 02:15 AM
Definitely not Boesmani looking at pic. As far as nipped fin, maybe simple pecking order. Rainbow fish are beautifuk fish, especially if you have 50/50 bulb on single strip or combination of day and actinic for double strip. Can even add other types fast moving top swimmer to break them up. I would be very curious to find out what it is. Who knows, you may even have very rare ones. They maybe male Juve which will have brilliant colors as they mature.
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post #9 of 13 Old 11-16-2008, 01:16 PM Thread Starter
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well, it wouldnt be the frist time he got a fish name wrong i would really appreciate it if anyone could tell me what it is, i cant find anything on it.
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post #10 of 13 Old 11-16-2008, 06:43 PM
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How big are they? They might be young Boesemani and not colored up yet. You can try posting your question on the forum at bowheads.org which is a rainbowfish forum. Lot's of knowledgeable people there that might be able to help.

150 Gallon - Mostly American Cichlids
135 Gallon - Angelfish Community
75 Gallon - Odd couple (Polleni/Angelfish)
55 Gallon - African tank
20 Gallon Long - QT
10 Gallon - Empty
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