Review on 🍃 SunGrow Catappa Leaf Holders for Betta Fish, 1", Transparent Suction Cup with Clear Ring, Ideal for Glass Fish Tanks and Aquarium Walls, Pack of 2 by Heather Nelson

I bought this product as an alternative to my favorite swimming trunk as the trunk is cumbersome in small aquariums and I use IAL anyway. I've only had this suction cup in this tank for maybe a month and I've noticed that it almost "peels off" the little layers of plastic rubber on the bottom every time I move it (I took the picture after I pulled it off have). large piece and examined it. (It's not biofilm, I actually looked at it the way I first thought) I don't know what it's made of and if anything can get into the water, but I'm very concerned about my fish/shrimp and very disappointed with a 12th place -Dollar suckers considering the cheap planes I use in all my tanks have lasted years and not worn out. I removed them and will not buy/use them again.