going up and down stopped and immediately went to bottom and remained there for many seconds. Then the large fish went to the top but did not touch the surface and did not resume up and down movement until I turned the light off a minute late. # of tenies fish touched the surface- then went down the glass all or part of the way to the bottom, then up again) = 33 in one minute - with interruption two additional times by plant beef. (Note preoccupation with the corner of the aquarium during deep dives. Biggest (13mm) fish "playing" by rubbing against rocks! 1430 hrs - Two fish still against aquarium glass & quite active. Others all around plants and quite inactive - feeding - Nibbling at plant surface. (some food restricting of plants). Light left on from 0930 - 1530 hrs. 1530 hrs - Little feeding now. Activity moderate around aquarium - Cervation, feeding intermittent but not as intense as at 1430 hrs. Some slight schooling noted (3 fish together later than others - but only for a short time. Temp. or aquarium therm = 89°F Accurate chim therm = 33.5°C