insects

Hello guys. I have an indoor enclosure for my tortoises. They are all nice and healthy but today I have spotted some white spider-like bugs in their substrate. What are some good pesticides for getting rid of the insects without harming my tortoises? Thanks.

There’s been an accumulation of insects in my RF’s enclosure lately, not sure what they are but some people tell me to keep them because they’re beneficial... Is this true? (I had some videos of them but the files are too big, ugh)

Apologies in advance if this is a question that has been done to death! I live in the UK and my garden is quite lush. I'm setting up an outdoor enclosure for my year old Russian so he can catch the sun in the warmer months and get some grazing on the go. My question is, should I be worried...