Yup, they get ridiculous in no time, I hate them so much. My plant tank runs off a shared sump with my 180. Some made it thru the pump and into the 180, now it's infested.Big mistake in me adding MTS in my 75 gal planted tank. Started off with 5...just yesterday (3 months later) I was using tweezers to pick out 70 of those suckers with lots more in the substrate.
I actually acquired these MTS from a used sump I purchased that had a few in there. Thought they'd help my cleanup crew so I threw them in. Pond snails, I crush and fishes & shrimps devour them...MTS are so hard, I cut my finger on one. #*¥€%!!!Yup, they get ridiculous in no time, I hate them so much. My plant tank runs off a shared sump with my 180. Some made it thru the pump and into the 180, now it's infested.