New rosy barbs... - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 5 Old 09-03-2011, 08:00 AM Thread Starter
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New rosy barbs...

I have a 36 gallon cold freshwater aquarium with this stock:

3 Golden Dojo Loaches
3 Long tail Rosy Barbs
1 "Fire Barb" (I'm guessing albino or some other color variation of rosy barb)

The long tails are actually the new ones as my fire barb is the only survivor of a school of five I'd bought months ago (most random thing... had never had a school of fish just drop dead on me). Anyway... I bought the new long tailed rosy barbs two days ago to give the fire barb a new school to group with so it wouldn't get stressed out. Unfortunately though... the new rosy barbs are suddenly harassing the hell out of my lone fire barb. At first they were schooling together fine but now I see one of the long tails in particular chasing the fire barb all over the tank. I don't know if rosy barbs have kind of an "alpha fish" or not, but the fire barb really just minds its own business at this point, but the long tails follow him basically just to harass him it seems. Is this normal behavior for a new school of rosy barbs?

I'm really not very experienced with barbs in general. I decided to try them because I heard they were very easy to care for.
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post #2 of 5 Old 09-03-2011, 08:54 AM
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Well I have a little experience with Neon Rosy Barbs. I have to say that when I increased my numbers from 1 to 6, what a change in disposition. However, the entire group spent all day long racing back and forth the length of my 75 gal, and their fav spot was the output from the filter. Several have died off and I'm down to 3 now, one is the most aggressive, chases one of the other two... maybe two males left over, not sure. I'm not adding anymore, and will slowly "downsize" this group as they go on their own. Easy to keep but I myself find them somewhat aggressive. like the name, always taking a poke at you. a barb.

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post #3 of 5 Old 09-03-2011, 01:07 PM
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If you check our profile--click the shaded name Rosy Barb--you will see it mentions reports of fish being nippy when kept singly but less so in groups. Jackiebabie's experience is not surprising.

Shoaling fish are that way by nature, and always with reason. One reason can be interaction between fish in the shoal, and this can take many forms. Barb by their nature are more active and feisty than say danio, or rasbora certainly which are extremely peaceful. So with such fish like barb, more is always better than less. Tiger Barb for instance have proven track records of being less trouble in groups of 8 or more.

When a single fish or two is added to an existing group which is already too small for the species, trouble is often severe, as you've noticed. This goes for many shoaling fish, be it angels, discus, some tetra, etc. The "pecking order" in the existing group is threatened by the "intruder." If possible, always buy all the fish in the group together. If you need to later add more to replace or just expand, add 3 or more together. Less trouble will ensue.

The Fire Barb is not yet in our profiles, so here's a link to an article by Matt Clarke in PFK:
Fire barb, Barbus fasciolatus | Features | Practical Fishkeeping
Matt doesn't give numbers for the group, but I would suggest 7 or more, acquired together.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]

Last edited by Byron; 09-03-2011 at 02:54 PM. Reason: correct spelling
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post #4 of 5 Old 09-03-2011, 02:44 PM
I have kept Rosy Barbs with Tigers at one point and in my experience the Rosy Barbs were more aggressive. When I increase the number to 11 each they settled down a kept to themselves, but there was certainly a heiarchy within the group.
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post #5 of 5 Old 09-03-2011, 06:05 PM Thread Starter
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Quote:
Originally Posted by Byron View Post
If you check our profile--click the shaded name Rosy Barb--you will see it mentions reports of fish being nippy when kept singly but less so in groups. Jackiebabie's experience is not surprising.

Shoaling fish are that way by nature, and always with reason. One reason can be interaction between fish in the shoal, and this can take many forms. Barb by their nature are more active and feisty than say danio, or rasbora certainly which are extremely peaceful. So with such fish like barb, more is always better than less. Tiger Barb for instance have proven track records of being less trouble in groups of 8 or more.

When a single fish or two is added to an existing group which is already too small for the species, trouble is often severe, as you've noticed. This goes for many shoaling fish, be it angels, discus, some tetra, etc. The "pecking order" in the existing group is threatened by the "intruder." If possible, always buy all the fish in the group together. If you need to later add more to replace or just expand, add 3 or more together. Less trouble will ensue.

The Fire Barb is not yet in our profiles, so here's a link to an article by Matt Clarke in PFK:
Fire barb, Barbus fasciolatus | Features | Practical Fishkeeping
Matt doesn't give numbers for the group, but I would suggest 7 or more, acquired together.

Byron.
My "fire barb" looks wayyyy different from those. When I bought it months ago I actually did a little browsing online about it and found that it looked most like an albino rosy barb. Exact same shape and size as a rosy barb, but it's bright orange instead of the usual rosy color. As it got bigger it actually started to get more of a silvery color to it like the regular rosys have. Nonetheless though, I'll continue to monitor them and if the situation doesn't improve I'll probably end up moving my fire barb to a different tank. I've had it too long to get rid of it. Thanks for all the posts everybody!
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