I find if fed more than once a week they start losing interest or at least don't come running out of their tunnels like they do if fed once every 2-4wks.
I give it moths more than anything else. Outside light at night will see you right in just a few minutes with out a fight. :sml2:
Mine has mainly peat substrate, and a type of spider plant that seems to do well on neglect just like the spider.
Use to mist every couple of days/week, even had a water dish in the beginning. Now just keep substrate damp, can't remember the last time i misted the tank tbh, has been dry for weeks at a time and spider looks all good. Have noticed her tunnel has been dug down into the substrate so maybe she is damp enough in there.
Got given a young tunnel web just the other week, keeping her in container with just vermiculite substrate. She's lurking under the vermiculite like a trapdoor spider atm.
Could be just too warm where you have the tank? I always keep mine in the coolest part of the house, very occasionally give it some morning sun (for the plant mainly), but have a feeling they prefer it on the cooler side in general..