Fish: Missing Otocinclus

 

This is a terrible tablet camera pic of my first Otocinclus right there in the center. When I turned on the tank's heater for the so called winter the algae turned my entire tank green. I initially went for a snail but feared reproduction so I went with another Otocinclus. It has been a week or so and I just noticed that I haven't seen the new kid. Gone.

 

Last night I searched the tank (while totally scaring the other fish) and I assumed I must have accidentally removed home it when cleaning the plants or that Mario ate it during the blackout (tank light burned out). This morning I googled and found that these fish just up and disappear! They die and decompose within four hours. Apparently they are fussy. $3 gone too.