yeah..the pores might be a bit smaller but its pretty close to the one i bought before ether way i plan on dunking it with each weekly water change.^_^
yeah i sewed them together...witch means i took fishing string..tied it once it was threw the needle and punched it threw both tubes to keep the small one in it wrapped it around the tube and tied it off ..it was only because i have no stones to keep the tubing in place atm so the wrapped fishing line and being tied in holds every thing in all neatly.was wondering how you "sewed them together" did you actually sew thru the tubing? also if it were to be glued what kind is safe for fish? its a wonderful idea. and i hope it works out great for your needs. i may do something like this for my shrimp tank when i start breeding them again.