My friend just got a little moss ball kit that came with 6 moss balls and she gave me 2 of them, the kit also came with some very obviously fake bright green pompoms. I am not sure if these are real marimo balls or not. They were packaged in a small ziploc bag and were wet, they smell earthy, kind of like dirt and plant material, they dont have a solid core like a lot of fake ones, and i did kind of sacrifice the smaller one a bit by tearing it open some to make sure there wasnt a pompom inside and it was just densely packed hair like fibers on the inside as well. Also the discoloration leads me to believe that they could possibly be real, but I am still skeptical as ive never owned moss balls before so idk. Any ideas? And if they are real any tips on caring for them, especially the more discolored one?

I’m setting up a 20g low Marimo tank and I bought a chiller machine. I’d like to know what the ideal temperature is so that I can set it and hopefully have extremely happy Marimo. And yes I have more than one Marimo so I’m not going overboard in spoiling them but I want them to last and be happy 😊