Help ID these snails

I'm not adding loaches - I'd rather get rid of the snails. I keep a separate tank with brigg snails and I really don't want these other ones in any tank. Whatever I can trap will be given away or discarded if no one wants them.
 
I put the trap in, we'll see how many are in there in the morning but this is how many I just picked off the driftwood. There are some red and some brown speckled ones. All have got to go.

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this morning there were no snails in with the zucchini. I'm going to put in some Ken's pellets and see if I get any this time - my briggs love those pellets. Duh me, I should have thought of that last night! I'll look under the driftwood again.
 
good morning, today there were no snails in with my trap, however, there were 3 fish trapped in there leaving no room for snails to get in......stupid fish. Fish are okay so I took out the slate, driftwood, potted plants - pretty much everything in the tank and came out with these snails. I'm convinced that there are more perhaps buried or just blended in where I couldn't see them. Is there another method to getting rid of these without having to dismantle the tank every couple of days. I have fry in that tank as well and I wouldn't want to put unwanted chemicals in there to harm them. There are about 30 of the reds (top right of pic) and approx. 60 of the brown speckled - I lost count. Anyway, as pretty as the reds are - they have all got to go.

Because they are different sizes, is it because there was more than 1 egg clutch that came in on the plants?

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