Are these snails mating?

Lowered the water line a little, no eggs anywhere but the snails (five in there) seem to be doing this non stop one in particular is pretty much latching on to every other one in the tank. I read up on here about hatching and so fourth so hopefully I can get some baby snails if I find a clutch. Also picked up to nice looking light blue shelled ones today but there black snails all the other ones are white. Can the two mix or should I seperate them?
 
they can mix, there is no guarantees even ify ou seperate them that you will get the colors you want anyway. Typically its a mix, with the parent colors being dominant but other colors occuring as well.
 
Theres five i put in a ten to keep it clean for my cory fry and the other two black ones i put in one of my 55gal's
 
So there are five adult snails in a ten gallon with the cory fry? How many cory fry? The reason I ask is that Mystery Snails should have at least 2.5 gallons of water per snail, and I can tell you from personal experience that they produce a lot of waste so this is crucial. The Cory fry will also need pristine water so you want to make sure you won't have a water quality problem later on. How many Cory fry in the tank?
 
Theres about thirty cory fry Im really not worried about the water quality as I monitor it frequently and in about a week half the fry are going to my brother and if I need to move the snails I have plenty of extra tanks. I currently have 2-55's 2-40's 1-20l 3-10's up and running and another 10 and 5.5 that I picked up the other day in the process of being setup when I decide what to do with them or if my wife doesnt kill me first lol. I just found this site about a week or so ago and after reading up Im leaning towards clearing the 20l and setting it up for snails and shrimp. Ive never raised these snails before but I used to breed ghost shrimp (food source) so Im familair with keeping a type of shrimp but Im leaning towards rcs this time as pet shrimp lol.
 
Thirty Cories (fry) are going to grow quickly in a week and a half. My advice would be to keep up with partial water changes and test for ammonia/nitrites/nitrates daily, especially with the snails in the tank. Good luck and keep us posted!
 
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