My frogspawns dont like touching eachother, when they do, they shrivle up. I figured it was the positioning, they like being in a wide open area with moderate lighting. I was thinkin about getting rid of them too, because they spend most of their time inside the calcium deposit.
They should be fine touching eachother, I have many diff varieties of frogspawns, and they do fine when they touch eachother. Their stings arnt as bad as you think it would be.