beta compatibility

Question
I love beta fish and i have a female beta, i have a 25 gallon tank. i have a
charcoal filter and gravel and few plastic plants and i also use water
conditioner. i change water every other week .i do not want to buy a heater.my
question is what other fishes can i add in it which do not require a heater.i
love angel fish, fantails,zebra danios,black phantoms.can i add them in
there?and 2nd question is can i put more than one male betas in my tank as i
think i have enough hidding places if they get into a fight.


Answer
All fish require a heater. Bettas especially, they come from a warm climate and so need warm temperatures. Zebras are  good to add but some will pick at his fins. I find that Blood Fin Tetras are good companions and so are mollies.
It could be big enough but then my policy is one betta per tank. You can try it and see what happens but be prepared to pick out a dead fish, possibly two.

Tip: Real plants are better for the tank because they help lower ammonia levels and make the fish more comfortabe