Ive got a pet shop and I wanted to accept bitcoin and alt coins then I was reading about becoming a bitcoin exchange ... is this possible? I understand its worth goes up and down.
you can use coinbase merchant register at here
https://commerce.coinbase.com or you can use
https://www.coinpayments.net the detail to using coinpayement at here
https://www.coinpayments.net/merchant-toolsor if you dont want to be merchants you can use simple bitcoin address, then calculate every someone want to pay in bitcoin.