I just recently bought my first live plants from Petco the other day. They were labeled as "assorted anubias" and I'm just wondering if/why two of my smaller plants look a little shriveled compared to the big one I bought. As you can see in the pics, one I have attached to an ornament and the other is buried in the sand. Please help! My plan is to slowly transition my set up to all live plants but I want to make sure I have all my bases covered before adding more. Thank you!