Bill Stock wrote:
I was on a midnight run to feed the indoor Pond fish, they're on a nocturnal
schedule to make the most of the heat from their lighting. Turned on the
light, walked past the Tropical tank and saw three Otos. The most I've seen
in months is two. So I start looking around and I finally counted five,
there should be six. I haven't lost the little buggers after all. One guy
looked REALLY fat, now I know who knocked off that Tiger Barb. 
I never know how many otos I've got...sometimes I think that they have
all died and then one day they all pop up sitting on the same leaf
together :-)