he wouldnt need a 65g for a single beardie
a 40g or 55 is more than enough space
2 of my teachers keep theres in a 29g and theyve had theirs for years altho i wouldnt put him in anything smaller than a 40g
i got everything i needed besides the tank for about 100 bucks
a 40g tank will not cost more than 50 bucks last time i checked
and i dont think ur bearded can eat 100 crix a day
unless hes a super beardie
my baby beardie eats about 30 crix a day in 2 sittings and a few small peices of romaine in the morning
but if your concerned about crix u can get a box of a thousand online or at an expo for about 10 or 11 bucks
even cheaper at the expo ive seen a box of a thousand for about 8 bucks before
but on average 10 or 11 bucks online plus shipping