I'm actully thinking about getting a 3 Gallon tank for my Betta so that I can have the Goldfish by itself in the ten gallon..Goldfish require more care for longer...the betta will only live for a few years then I can get a halfmoon...the Goldfish on the other hand, will live for about twenty years... :)
I know everyone else has been bugging you. I'm going to bug you. And I'm sorry to say this, but I'm not sorry about bugging you.
a. even if the goldfish has the whole 10 gallon to itself, it will still outgrow it. Sure a goldfish can live 20 years, but only in the right conditions
. A 10 gallon is not the "right conditions", it simply isn't big enough. So your goldfish is not
going to live for 20 years.
b. if your betta is this "disposable" to you (forgive me if I'm interpreting the wrong way) why would you want another one? Bettas have lived up to 10 years, which is longer than your goldfish is going to live. Many members' bettas have lived from 3 to 5 years. See >>> How old was/is your oldest Betta - what's the longest you've had one last?
? I, for one, am very sad when one of my bettas dies. I have been known to cry, and I'm not ashamed about it. I'm sad to think that your betta is nothing but a disposable thing
that you would rather replace with a different, better one.
c. if you want a HM, why don't you get rid of the goldfish. Divide the 10 gallon 3 or 4 ways and you can have your HM. But I would hope it gets better care than your current betta is getting.
That's all I have to say. But if I think of more I'll say it later.