I read in another post about getting springtails to help with eliminating waste in the tanks substrate. After searching the only thing I found said they are a good supplemental food source for the frogs and that they need to be fed pasta, etc. If I am feeding them, then are they actually digesting waste from the tank? I might just be reading it wrong, but any insight would be appreciated. Here's the product I found: Click to buy jumbo 32 oz temperate springtail (colombella) culture from Josh's Frogs. We also have wide ranges of springtails. Fast shipping. Excellent services - Josh's Frogs Are these what I want?