Black lines on stomach

[MarioMan]

Is there a reason little black lines show up on marios stomach?

 

[Longfellow777]

Ok the uvb I am assuming is a coil it will need to be replaced w/ a 24" fixture zoo med comes w/ a 5.0 you will need to order a 22" reptisun 10.0 T 5 -- or a Arcadia pro T 5 w/ a 12% bulb-- or sunblaster nano tech comess w/ a bulb - your basking light needs to be moved directly over the basking decor get a basking temp surface 105-110 that needs to be taken w a digital probe thermometer- place the probe on the spot where he sits for basking 10 min or so get the temp- incorrect lighting will also cause stress marks- if you want links to uvb fixtures I can post but you need to get this fixed ASAP--

I've sent two great links for both the 12% and reptisun