Can anyone recommend a good adjustable heater for a 2.5 gallon tank?
My poor Kinu has a small Aqueon 10 watt heater that isn't adjustable and the water temperature fluctuates way too much. He is kept in my bedroom which has the A/C on only when I'm staying in my room for a while (so usually overnight). When the A/C is on, it his tank will drop to 72, but when it isn't my room gets pretty warm and his water's temperature will rise to max 84ish. It's a huge fluctuation, but so far he hasn't appeared to mind it much. I'm worried it'll start to bother him before too long.
I've stepped into Petsmarts/cos and can't seem to find any adjustable heaters that aren't huge or meant for anything less than 10 gallons :/
I really don't want it to take up too much space in his little tank but I guess that'll be better than inconsistent temperatures.
Also, if the heater is capable of supporting up to 5 gallons that would be awesome because I intend to upgrade him when I have enough money.