My scorpion

But if I will give more water than he needs that not harm him, yes?

it could do. I know some can get mycosis from too much humidity...dont know if that counts to water in a bottlw cap.

Try not to feed him for another week. I only feed mine once a week and sometimes they still refuse for a good few weeks.

One cockroach once a week?

Some scorpion can eat a lot some eat very little all can go a long time without eating.

As Connie said, too much humidity to a desert species can lead to mycosis (fungus infection). Try to keep it fairly dry.

but a lil bottle cap of water wouldnt raise humidity enough for that would it?

it could at least to a small area of the enclosure

yeah but not to a dangerous level surely, i guess it would depend on the size of the enclosure aswell, obviously less air space but the same amount of water will result in a higher humidity right?

I just dont give any of them water. But eh thats just me.

in general i dont give my h.arizonensis any water cuz like with all desert species it isnt needed is it, just thought id see if it would really make much difference