the only reason I THINK enclosure size would affect growth rate is because in a LARGER tank feedings would be "less forced". the t would likely be hunched in a small section while the food is somewhere off in the distance. In a size appropriate container the food is in the ts face so to speak , so it will eat when it wants. tarantulas arent like fish with indeterminate growth. (Some fish will continue to grow based on space available)
---------- Post added 05-06-2012 at 10:26 AM ----------
i believe it is just a variant in sack mates. this topic is briefly discussed in my thread i started here http://www.arachnoboards.com/ab/show...chripes-slings
---------- Post added 05-06-2012 at 10:28 AM ----------
also, scroll down and read the thread chris skeleton started... "Enclosure size vs. growth rates"