do i need a heater for this?

  • We are currently upgrading MFK. thanks! -neo
ok, well in that case, do i need a bigger tank so i can get a betta for my community? i currently have 4 dalmation mollies, 4 cory's, 3 lyretail guppies, 2 red honey gourami, and 5 baby cherry barbs. it is a 96 litre tank

As long as you keep up on tank maintenance it should be fine. The betta will be more than happy in a 96 litre tank. Just make sure your ammonia and nitrite levels stay at 0. Regular water partial water changes, etc.
 
i do a 10% water change every week, and usually a 30-50% every 3-4 weeks depending on how dirty it looks. hasnt been to bad so far. also, i have a fluval 3+ internal filter, is this good enough? i am thinking of getting an external filter but not sure, and my heater doesnt seem to be getting the water above 72 degrees F or 22 celsius. do i need a better heater?
 
do i need a better heater?

Is your heater at maximum? If so then yes I would buy a new heater. I like to keep my temp at around 26 but that's just me.
 
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