I keep an A.versicolor spiderling (about 2.5 - 3cm) in a 20cm high, 9 cm wide glass jar with about 6/7cm of substrate and as many vent holes in the lid as I could fit. Problem is it never seems to catch the crickets, although I suspect it has eaten a few already-dead ones which have dissapeared, it just slowly follows them now and then in a half-arsed sort of way never quite managing to catch up with them. I've had it for about 2 and a half weeks and it hasnt really made any webbing at all and is generally very inactive. Does anyone have any advice? Cheers