How can you say that something that you just put in a tank for the very first time with an animal you just got has no negative effects. You have nothing to base your opinion on! And maybe you didn't read my post! I never said that it will continue to expand. I told you what the stuff was because I used to dabble in hydroponics which is what it was designed to be used for . If you are in doubt compare it against this
HYDROTON, expanded clay pellets, hydrocorels
If you apply enough water for the material to make any difference at all it WILL be constantly damp. That is the reason that it is used for hydroponics. They wet it and it holds a thin film of water for plant roots till the next time it is flooded. It WILL have the other bad effects I mentioned.
Whether it sticks to fur or not there is still a chance of the snake ingesting it as it swallows the prey. Snakes do not ingest substrate because they think its food and deliberately eat it. It happens by accident.
The reason that you don't get responses from people who use it is because nobody uses it other than as a drainage layer for under the soil in a planted vivarium. An experienced keeper does not have to put something strange in an animal's enclosure in order to tell whether it will be functional or not when it clearly will not. You have gotten replies from some VERY experienced keepers and you are chosing not to listen to them.