Acanthophthalmus myersi is the name of fish in article.
Grows to 10-12 cm.
Males are slim, Females have a more robust ventral regien with green ovaries showing through. The fish spawn below the surface,sidebyside, in a gliding motion, with such speed that whirlpools and waves are created on the surface repeated at intervals of 5-10minutes for 2-4 hours.
The temp should be around 26,ph 6.5,8dgh and up to 1dch. Greenish wggs 1mm in diameter hatch in 24hours.
Doesnt say what induces spawning though. :-?