So we have a Guava tree and I decided to put a couple leaves on my tanks since I read it was good for the water. It had some small white stuff which I was thinking was probably fungus or mold. So i washed it, cleaned it and made sure I removed every bit of it then boiled it for 5 minutes before putting it in the aquarium. After a day small parts of the leaves started turning brown. I was surprised and thought why is it decaying this fast and upon closer inspection it had brown jelly egg type stuff on it. I've read online a little and all I could manage to find was it was probably snails since I had plants in my tank and I found 1 small pond snail on one of the plants that i bought. Problem is I found another egg type stuff on another leaf I put in a different container where there's nothing in there but a platty that I was keeping while I was fixing his tank. If these are snails how do I find them? Cause I see absolutely nothing in the plain container. I wanna get rid of them cause someone said that they carried parasites and worms and I don't wanna have to worry every time i stick my hand in the water specially since i get cuts on my arms sometimes.