It's not keeping a warm enough temp despite me putting it up on the dial. It's staying at 23 no matter what. It's been like this for 2 days, the light is on and it's warm to the touch at the bottom. I don't know if I should buy another as it feels to cold for my Betta.
I reckon you should get a new heater just to play it safe. My tank is 120liters with a 50w heater, what ever I set it to, thats what the temperature will go up to. If you have it maxed out and it's only going up to 23[sup]o[/sup]C then I would get a new heater. They aren't overally expensive and it will put your mind at rest.







