There are different opinions but, personally, it seems a bit on the small side? Think of a gallon jug of milk, water, or whatever; imagine if that space was your whole world. For that money you could get a kritter keeper of 2 or 3 gallons. For something that small you really don't need a filter, just do regular water changes (I think the recommendation is one 50% and one 100% every week) & you'll be ok.
Oh, and you don't need to leave the water sitting out unless you want to, but even if you do you would still want to use a dechlorinator/conditioner such as Prime.
I will defiantly move up because I have a 20 gallon tank that just needs to be cleaned and such. Im moving in a few months so they will be transferred into that as soon as I can after moving. I got a thermometer yesterday and the temperature has stayed at 62 degrees for awhile. Will a light help keep the temp up? Also what did you think of the tank since you've had it? :) Thanks :)
i had that tank when i got my first betta and it really is rather small. plus theres no room for a heater. the triangular shape seemed really awkward for St. Jimmy. He died before i could put him in the new 5.5 gallon i bought though :/ i personally wouldnt recommend it. you have to remember that its only a gallon without anything in it. add some gravel or marbles and maybe a plant, and the bubble thing if you choose and suddenly youre closing your little guy in. i was going to upgrade to a 3 gallon which i heard was a good minimum (1 gallon per inch of fish) but the 5.5 was cheaper. sorry if i repeated anything anyone else said. i didnt read them all :/
Emily, the one gallon per inch rule is not a reliable one. I really wouldn't suggest using it.
As everyone has said, Fishielover, you will definitely need a heater. A light doesn't provide enough warmth and cannot keep a stable temperature since you need to switch it off at night.
I would also get a Kritter Keeper rather than the expensive but not as good Hawkeye, and use the money you save to get a really good heater and some good quality food and water conditioner (Prime gets my vote).
I wasn't going to post. But this has got my attention.
There is no advantage to leaving it out. Yes, the chlorine will evaporate out, but you need to leave it for 2 weeks to get rid of chloramines and heavy metals will never go. Leaving it out allows stuff to fall in it and for the temperature to drop to room temp. Much safer just to use a good dechlorinator like Prime. :)