I have baby MTS crawling into my power filter
and clogging up the intake and sponge layer

Do you have a pre-filter on the intake? That will probably help. They sell
generic prefilters (black foam cylinders that slide over just about every
standard intake) for a few bucks each at PetSolutions.com and other pet supply
places. It keeps the snails from ruining your filter. One or two may still
get in, but prefilters help a lot.

As for getting rid of them...trapping works very well, especially when the
population is so large. They'll be hungry. Put a big slice of apple or
zucchini on a saucer on the bottom of the tank. (Weigh it down with lead plant
weights, if necessary.) It will be covered with snails by the next morning,
and you can just lift the whole saucer out, snails and all. Do this a couple
of times, and the population will drop sharply. You won't get rid of them all,
but you can easily knock the population down to more aesthetic levels.


Leigh

http://www.fortunecity.com/lavender/halloween/881/