Is it best to get a 5 gallon with two dividers, or a 10 gallon with three dividers? Either one.
Anyways, if you have dividers do you need a heater for each division? Or one for the whole tank? You just need 1 heater for the whole tank.
Also, what is the best heater to get? I personally like my Adjustable Marineland Visi-therm the best.
Same question for the filter.. Just 1 filter/pump for the whole tank. I love my Marineland Penguin.
And about how much does it cost to get everything? Get the 5 gallon kit at walmart for about $30, dividers about $5, and a nice heater for about $25. Cost you about $60 to $75.