I have just got a juwel vision 450 and it came with a 300w heater. but i have just read this book and it said two heaters for a big tank one either end.
and it said that you need 10w per gallon, and my tank is 98 gallons so do i need another heater or am i just reading the wrong book.
and it said that you need 10w per gallon, and my tank is 98 gallons so do i need another heater or am i just reading the wrong book.