I back wash with a shop vac in blow mode. Block the extra space with a wet towel and hold it in place until I get air out of the bottom drain. Seems...
They are in two 55 gallon aquariums for 30 days then into five 75 gallon aquariums till spring. They are my first Koi. The temp in the aquarium is 70...
First I see this is your 3rd post so let me welcome you to the forum there's a lot to learn thru the year's of accumulated information but I need to...