How long to leave uvb on?


The Dog Trainer
10 Year Member!
Platinum Tortoise Club
Jan 9, 2010
Location (City and/or State)
Southern California
I have arcadia HO t5 6% uvb and i don't know how long to leave it on for. Also, is 55cm of 90cm enclosure the right size. Thanks.
55x90 cm is too small for anything but a tiny hatchling.

In most cases, its best to leave the UV on for 2-4 hours mid day. This assumes you have the UV tube mounted at the correct height and have checked the UV output with a Solarmeter 6.5.

Try this. There is a heating and lighting breakdown and a care sheet at the end:

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