In a message dated 98-01-20 21:55:06 EST, you write: << So far they have been very easy to keep and breed > and male is begining to show more color as he gets larger (light blue > sheen). Females turn an attractive yellow when spawning and guarding > fry. By the way, all my tanks have white/brown play sand as a substrate. > This kind of sand is not sharp and the apistos seem to enjoy shifting > through it. >> This substrate interests me, by virtue of the fact it is light-colored and yet you are getting spawns. This runs contrary to my and others' experience as witnessed in a recent thread. Can anyone shed some light on the details of the common collection sites of this species?