So I bought a nice cool looking piece of driftwood from Petco today. I go and open the bag and start draining the water. Suddenly a fish pops out and lands on my counter next to the sink. First reaction was to grab him, but his barbel got me so I had to rush around for my net. Got him in the net and plopped him in my daughters guppy tank. I didn't have any water left in the bag so he had no acclimation...Poor guy was so stressed out! So it took a bit to realize what he was, looked it up and sure enough a yoyo loach. Sadly I can't keep him because I only have 2- 10 gallon tanks with shrimp and my daughter's 5.5 gallon with guppies. I couldn't take him back tonight and have decided to maybe keep him a bit and let him eat some snails. I am going to see if a different fish store will make a trade for a plant or something. He's about 3" is all right now. Wish I had a tank for him :/ I just wanted to share my crazy story. I couldn't believe that guy hid in the driftwood for the time I was standing around talking with a friend who works there, I even looked around the bag for snails (I am cool with hitchhiker snails) and never saw him. This piece of wood has almost a tunnel in it so makes sense now. That wood is in my shrimp tank though, not with him now. Unfortunately til I get him traded he is stuck in the 5.5. Will gravel harm him?