Ok, so I am in the process of setting up my snakes enclosure to dial in the temps for when I get one soon. My 20g tank has pins to "lock" the tank so the top wont budge. My question is, in fear of my snake injuring itself if ever roaming around(i assume it will eventually) should i buy some clips instead.

The pins lock in the top, and sit close to the glass on the inside of the tank. There is about 1" of the metal fom the pins just hanging inside the tank that I figure could poke an eye or do damage to w.e part of the snake. Pics included.

Front of tank:



From The inside:


seems a tad dangerous to me.. opinions?