Oh my God guys, my little fish gave me SUCH a scare a little bit ago! Earlier I realized I didn't see him in his tank (its shut, before you gasp) and just dismissed it as him in his cave. Later I looked and I STILL didn't see him, so I went over to his tank and I started tapping on the rim and sides, no sight of the little fish even after tapping several minutes.
I shined a dim flashlight into the entrance to his cave and didn't see him so at this point I was REALLY freaking out. He couldn't have gotten stuck in there, he didn't jump out, and I know that when I'm not over by the tank he gets bored and just floats around. And he had been floating around a bit earlier just out in the open, open fins or closed fins. And I thought for a second maybe he was sick and I didn't notice it! I opened the tank, rolled up my sleeves and wiggled the cave, no response. So I took a deep breath and began lifting the cave up...
ZOOM! Out comes a startled little fish, startling me and nearly making me scream along with the jump I did. Maybe he just didn't want the light on anymore and wanted to be in the dark. But I was worried. ;-; So quickly I set his cave back down, watched him zoom around a minute, and closed the tank before he jumped. I was shaking for like 10 minutes. Ahaha.