Originally Posted by redchigh
First off, I hate to gravedig (bring back old posts) but I broke down and bought a Betta.
Would any of the fish in this thread do well with a Betta?
I'll assume that loaches are fine, but I was hoping for something in the middle levels...
(chain loaches are a bit expensive...)
Assuming you mean a male Betta splendens, yes and no. First, I am in good company saying that this fish deserves its own space. Females do well in community tanks if in a group of 6 or so, males do not. Never more than one male in a tank, and on his own is preferable for the fish's health.
Having said that, if space permits, suitable fish can include bottom fish like Corydoras, Otos; mid-water fish of the genus Trigonostigma (the "common" rasbora). Boraras are so small they would inevitably be eaten, depending upon the temperament of the particular Betta. Any other fish with colourful finnage (such as guppies) are usually seen as "rivals" and cause the Betta to be aggressive or stressed by the annoyance of perceived rivals.
And at this point a comment on the issue in the subsequent post. Different fish within a species can behave differently. But what must be remembered is that this species is programmed a certain way by nature (even though this is something of a "domesticated" species now). It has inherent traits and instincts. And just as with all animals (and humans
) different factors can affect the fish's behaviour with respect to these traits and instincts. And it can go either way, better or worse, from the inherent trait/instinct. Largely due to environmental stimuli as a recent (and the first) scientific study on shoaling fish has now proven.
The reasons for keeping a male Betta splendens alone are several. First, the behavioural aspects alluded to above. Second, many fish, including even those otherwise "peaceful" can turn nippy in the presence of so tempting a target (same holds for angels). Third, Betta are quiet calm fish; over-active fish around them is unsettling, adding to stress and this means poorer health. Aggressive eaters can cause a Betta to not eat properly, and even refuse to eat, a common issue again with angels, discus, and gourami, if kept with too-active a fish.