I would take first 1 too... But wun spend so much on Lemonpeel... Too risky to corals...
The 2nd on, the blue spot will only appear under blue light right? Not very obvious..
This looks very familiar!!! I used to have one very similar looking one when i just started marine... During the first shipment of eviota goby... It was mixed in my bag, it is like 1cm big only..