What's the difference with a mega ray in the purplish box then the one in green box for turtles ! Just not clear to me , please help. Thank's
160watt purplish box min 18" @ 150-200 microwatts max 24" 50-75 cost $45 Only says UV ??? ( what kind uv is it only uva or only uvb)
160watt green box min 18" @ 150-200 microwatts max 24" 50-75 cost $100 says UVA / UVB