It's an IM 20g Fusion Pro, it's the little overflows slots, they are big enough for a tiny fish to get through, and she did once before. However I have sponges at the top under about 1" of water, so she should've been caught there. The UV portion though has a small opening in the middle she may have fit through. Other than that, I am lost as to where she could be.I highly doubt your flame dragonet was eaten by any pistol shrimp/candy cane or other, I am unsure about jumping also as they tend to be mostly bottom dwellers, also if you seen it resting/sleeping the night before then it should of survived the night with your other inhabitants IMO, , I'm sorry if I missed it but what size aquriam do you have and what system could it of potentially got sucked into please ??
I would also agree with the other posts saying don't tear up/down your setup due to a missing inhabitant.... It may just want a day off from looking at you lol
I'll post pics of mine which I introduced 1 month ago, also caught it on video eating bloodworm but so hard as she is fast
honestly I would just be patient, she may have found a congregation of pods she is sat eating
Not tearing the tank apart but man, just weird to lose a whole a** fish in a 20g lol