08-16-2007, 08:30 AM
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A good suggestion Jones, the only problem being that very often, a betta will kill a male guppy because he will find his fancy tail threatening. I have seen it done before and it worked out alright but my guess is that this is simply because the male guppy is a better swimmer and so has been able to escape. I'm just not sure that a 6g tank is adequate space for the guppy to escape.
However I don't believe the fry would be a problem here as the betta would almost definitely eliminate any fry that were produced.
2 female guppies couold work but you would, like jones mentioned, have to make sure the filteration was aqequate. They also may not give you the colour you were after.
TBH, and I'm sorry this isn't the answer you were looking for, I woudl keep my money (not buy any more fish) and save up for a bigger tank. A 20g, or even better 30g, would give you much mroe options and would allow you to get 6 cories, keep the betta and even add a school of neons or something else that you might like.