Is too much T5 bad ?

JDDV97

Active Member
Joined
Jun 8, 2024
Messages
181
Location (City and/or State)
Houston Tx
I leave my leopard tortoise T5 light on for 12 hours along with the LED & basking light.

And turn everything off at once .
 

Littleredfootbigredheart

Well-Known Member
Joined
Dec 28, 2023
Messages
7,679
Location (City and/or State)
UK
Not necessarily harmful but potentially annoying to the tortoise as it’s not natural for them to receive 12 full hours of uv, that and it’s unnecessarily draining your bulb life

With the uv timing, every other source of information will tell you 12hours of uv. This is essentially an old fashioned rule that has stuck with a lot of keepers, it stems from the presumption that once the basking light or ambient lighting is on, ie the ‘sun’, that uv must coexist the same amount of hours. Fact is, uv rays only peak for a few hours a day, anyone with a uv meter will confirm this. No tortoise is blasted with 12 hours of uv in the wild, therefore it’s not necessary in captivity.
The right uv bulbs are much more expensive to replace once their uv strength diminishes, so it’s definitely best having it on a 4 hour timer that provides them with all the uv they need, saving your bulb life.
Then some cheaper led lighting for your ambient 12 hour light cycle, basking light on the same 12hours, your ceramic(s) will run 24/7 on a thermostat, hope that all makes sense🐢💚
 

JDDV97

Active Member
Joined
Jun 8, 2024
Messages
181
Location (City and/or State)
Houston Tx
Not necessarily harmful but potentially annoying to the tortoise as it’s not natural for them to receive 12 full hours of uv, that and it’s unnecessarily draining your bulb life

With the uv timing, every other source of information will tell you 12hours of uv. This is essentially an old fashioned rule that has stuck with a lot of keepers, it stems from the presumption that once the basking light or ambient lighting is on, ie the ‘sun’, that uv must coexist the same amount of hours. Fact is, uv rays only peak for a few hours a day, anyone with a uv meter will confirm this. No tortoise is blasted with 12 hours of uv in the wild, therefore it’s not necessary in captivity.
The right uv bulbs are much more expensive to replace once their uv strength diminishes, so it’s definitely best having it on a 4 hour timer that provides them with all the uv they need, saving your bulb life.
Then some cheaper led lighting for your ambient 12 hour light cycle, basking light on the same 12hours, your ceramic(s) will run 24/7 on a thermostat, hope that all makes sense🐢💚
 

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