During January 1996 I was fortunate enough to be in Trinidad and was able to collect three of these large (perhaps the largest) pink-toe spiders.
Collecting; Three individuals were collected, a mature male, legspan about 5 1/2", a mature female, legspan about 5" and one juvenile. The mature specimens were found on the trunks of large cocorite palm trees. The male was the first to be located by pulling down the dead dry stalks of palm fronds, the third such stalk revealed a large recently matured male (his leg joints were still quite white). The mature female was found webbed up in the space between the trunk and the base of a palm frond. Her abdomen was pear shaped, somewhat pointed at the posterior. The juvenile specimen was found in a gap between over lapping pieces of corrugated steel that formed the roof of an animal shelter. All spiders were located at no more than ten feet from the ground. All were collected in the vicinity of Cap-de-Ville, aka `gun hill'.
All specimens readily consumed prey items, after settling down for a few weeks the male was introduced to the female. This was done in the evening under dim lighting. Both spiders were housed in large plastic boxes, these were placed side by side, the lids removed, and the male encouraged to enter the females' enclosure. This was done by placing him at the top of his enclosure with his front legs reaching into the females' enclosure. The female had webbed up her cage quite heavily. The male paused for about five minutes, then began to move into the females' cage. He paced around a bit drumming a few times with his pedipalps, the female began to emerge from her web, her movement signalled her location and the male approached her. They touched leg tips and mating rapidly followed. The female was quite passive as the male jostled her into position. He was observed to engage her fangs with his tibial spurs, but I was unable to view insertion of his palps. His palps were visible rubbing her epigastric furrow though. From introduction to retreat by the male took about 30 minutes. The pair were mated on three occasions. Drumming was observed only at the first mating, it was and sounded very much like water dribbling out of an over filled house-plant onto a shelf below, that's what I thought the noise was at first. Subsequent mating was much faster with the female initiating contact. On the fourth introduction the female acted aggressively toward the male, he took the hint. It is assumed that this change in behaviour signalled successful fertilization. Sixteen days later the female webbed up a suspended bowl within her main web. Into this "bowl" she laid her eggs. The next morning she was carrying an eggsac 1 1/2" in diameter. She kept her tube web sealed up until hatching sixty days after eggsac production. 159 spiderlings were removed at that time. The dense "living carpet" formed by the spiderlings in their mothers' web was a rewarding sight.
Additionally here are some notes regarding rearing the spiderlings; spiderlings kept in groups did not feed as reliably as isolated individuals small mealworms ( 1/4" to 1/2" long ) are readily taken if dropped right in front of the spider a spiderling that won't feed, often will if the same mealworm is dropped again five minutes later spiders feed most readily in the evening spiderlings feed well if they have a web established that the prey item can be placed on dead (crushed) prey items are most readily taken if placed on a web ,if there is no web acceptance is poor. other prey items used, termites, crushed earwigs, small crushed crickets.
Keep these in humid conditions as like all Avicularia, and provide a somewhat tall cage as these are arboreals. A nice long piece of cork bark is recommended as use of a shelter. Always keep the humidity high; around 85%; mist often and provide an open water dish at all times.
Mike's overview of Avicularia in general (with the help of Rick Blauman)
Tarantula Terrain: housing and habitat