I'm working on a DIY sump setup. It has to be sealed, since I have CO2 injection. I am going to use a 6" PVC pipe (as Tom recommended as a possibility in another thread). I will have a place for a filter sock in the 6" PVC and below that I plan on having sponge and bioballs and/or ceramic-type tubes for biological filtration. The 6" PVC will be sealed at the top with holes drilled in the bottom to allow water to escape -- there should be minimal CO2 loss, assuming my overflow box doesn't have too much of a waterfall.
My main question is about filter socks.
I have been leaning toward something like this at Aquatic Eco Systems: Aquatic Eco-Systems: Mesh Filter Bags. Would the standard ones or the polyweld ones be better? I like durability and do not want to have to replace socks too often. I know that Tom keeps multiples socks and soaks them in a bleach solution to clean them. I like the polyweld because they go down to 25 microns -- the standard only go down to 100 microns.
There are also the simple "filter bags with draw strings": Aquatic Eco-Systems: Filter Bags with Drawstring. These would seem to be the most durable, and they go all the way down to 1 micron!
They are, however, extremely long (I suppose I do not need to use the full length) -- and I want to leave room for the biomedia below the sock in the 6" PVC.
Thanks in advance for any advice you can give.
My main question is about filter socks.
I have been leaning toward something like this at Aquatic Eco Systems: Aquatic Eco-Systems: Mesh Filter Bags. Would the standard ones or the polyweld ones be better? I like durability and do not want to have to replace socks too often. I know that Tom keeps multiples socks and soaks them in a bleach solution to clean them. I like the polyweld because they go down to 25 microns -- the standard only go down to 100 microns.
There are also the simple "filter bags with draw strings": Aquatic Eco-Systems: Filter Bags with Drawstring. These would seem to be the most durable, and they go all the way down to 1 micron!
Thanks in advance for any advice you can give.