Visitherm are generally considered the best in the UK. You'll only need a 25w for that 5gallon tank. Walmart do a 50w on their website for $16 but Im sure you'll find an LFS who'll do one. Or a reputable ebay shop.Anyone know on, the top of their head, the name of a good heater that can be used to maintain a 5 g tank? available in the US at say a lfs... not some skethcy buy online heater?
thanks