Anostomus question?

  • We are currently upgrading MFK. thanks! -neo

dpk2313

Plecostomus
MFK Member
Feb 20, 2009
1,330
0
51
ohio
Can I keep 2 Anostomus together without constant fighting?

And i was recently told that they eat algae, I doubt that they do but just wondering if it was true.
 
Since you have two they are going to fight. Anostomus tend to be aggressive unless in a school of 5 or more. I am sure tank size could have some effect, but like I said just having 2, they're most likely going to fight.

Yes in fact they do eat algae as well as veggies, fruit, worms, fish food, etc. I have a pleco that loves romaine lettuce, snow peas, and zuccini stuffed with freeze-dried blood worms. Who knew haha.
 
awesome, how about hair algae?

and do they inflict a lot of damage or just quarrel?
would it be better to split them up?
 
Algae:
In my experience yes even hair algae, but enough to keep up with hair algae growth..probably not. Many times once they've aquired a taste for fish food, they'll stick with their preference.
Aggression:
They are notorious for "nipping" so I am sure you will have plenty of that. I am sure since there are only two, it is most likely a dominance issue. Is it life threatening? Well that depends on the fish and the level of stress they can endure. Like I said, in a larger school they do just fine together. Perhaps in a larger tank with more room you might see less aggression. I know they prefer around 45-55 gallon tanks. But from my experience, 2 are going to quarrel no matter what.
To split or not to split:
Splitting them up would be a pain. Two tanks for the same fish. I think I would opt to add more and increase the size of the school rather than split the 2 up. Perhaps by adding 1 more the problem could be resolved. If not, add 1 more. Like I said in larger schools they are fine towads each other. Maybe you can get lucky with a school of 3 or 4. This would also mean more mouths to eat algae. Of course this would depend upon tank size again. If splittin them up isn't an inconvenience then that would definitely solve the issue. If not, I would consider added another fish or 2.
 
Are we talking striped anostomus (A. anostomus) or one of the other species? The striped ones I've kept would constantly nibble on plants and eat algae if it was at least somewhat thick (so they could get ahold of it), but I've also kept A. gracilis which ignored plants/algae but loved to nip (and eat) fish fins.
 
Yes we are talking about A. anostomus
 
MonsterFishKeepers.com