I allways try and keep the systems as easy as possible,and seperate so i can control anything that may happen.The 2 big ponds have 2-500 watt heaters in them for heat.Havent hooked up the air yet to the pond room.
Very nice. I like the overhead filters but I don't think I could live without my filter socks they are so convenient. Are your systems on a drip or auto water changer?