I think my heater is failing. It's had about 10 years of use. The indicator light comes out but the temp in the tank dropped to around 68 (room temp). Pulled the heater out and it doesn't get hot---just slightly warm. I'm running a space heater now pointing it at the tank about 6 inches away. I probably will order a new heater today from Amazon prime and will get it on Monday. If I keep the tank about 70 degrees, will the fish be ok for a couple days. My stocking is in my signature. Any recommendations for a good heater for my 35 gallon tall hex tank. What wattage do you recommmend?
