Seriously?!?!
first, buy an extra cage. once that shows up. pull yer skirts up. put on some rubber gloves. get two filters. squirt or spray some oil into the inside of each. work it into the filter. squeeze your fist. little oil comes out between fingers you got enough. pull filters over cages. put one on the saw. put one in a plastic zip lock bag.
That whole process should take you less than 5min. and now your good for 30-40 tanks.
OR
you can knock the hd2 out after every tank and complain about the fines getting through.