actually many fellow reefer would agree that skimmer is one equipment that you should not be stingy with... but Weipro will do the trick... you tank how many Gallons...
For worms... you rinse the LR with FW and spray water in to all the hole in the LR... den put the LR in to SW... wait a few minutes... Voila out they come... i dunno abt other.. work for me...