How do you get the solids (poo and other stuff) out of the tank before you spike some parameter that kills your fish?
Just curious.
Winter??? In that unit??? Hmmmmmm....
I am pumping from the bottom of the tank. I don't have my timer on the system yet, but I intend to flood and drain the top every three hours. The biggest issue is getting the ammonia out. But, that is what turns into nitrites/nitrates when I flood and drain -- and that will be taken up by my plants.
As for winter, I will let the system run until we get to a series of days where it does not get above freezing during the day, or the greenhouse gets below freezing and my plants die. My little greenhouse really heats up with just a little bit of sunshine when all the flaps are down. The approximate 250 gallons of water, and the rocks in the top should act as a pretty good moderator of temperature also.
Ken
