That is odd. I know that as long as temps don't fall below 65 it's fine. Not sure if it applies to a beardie with MBD though, perhaps someone else can chime in on that. But in any case if that night time bulb does give off a light it definitely won't do your beardie any good.That's what I was going to buy but on there the company's website site it said not permitted for bearded dragon to get then gave me the link to the one I bought.
jcfish847":393ed71u said:Thank you all so much for the help. I do to beleave it's MBD and since I've been doing bathing daily and vitamins I've seen a improvement. I'm ordering some new bulbs now cuz I'm not sure the strength of what I got. I'm in the process of building taller basking spots and won't be a issue at all to move the Florissant closer to the heat lamp. I thought it would be ok were it was cuz the heat lamp also said uvb out put but I guess that is not enough to alone. I called the nearest vet to me that will take him witch is like a hour and a half to two hours away and the Dr who see beardies is not in tell next week. I'm going to keep working with him tell we can get him there and hopping for more improvment.
CooperDragon":2v14p00b said:Yep, pull that off and leave it off. The clear plastic will intercept the UVB and render the bulb useless.
CooperDragon":h090eoge said:Yeah that's a T5 tube. They're great. Nice and powerful. Perfect for larger tanks.
They can have too much UVB but if you provide a gradient the same way you would with temperature they can move to an area of lower UVB. Based on reading and some of my own measurements, they bask between about 3-6 UVI (roughly) so that's what I try to provide over the basking area. They are exposed to much higher levels of UVB during mid day but from what I've read they tend to hide then so I shoot for mid morning and late afternoon levels when they're usually basking.
This all comes down to the type of bulb and the distance the bulb is from the basking area. You can add additional bulbs, but that just widens the area of exposure rather than intensifying the output which is appropriate in some cases. I like to have the UVB cover the basking area which is just a bit bigger than the length of your dragon to allow for even basking.
Generally, a T5 with reflector reaches optimal output at about 12-14'' while a T8 with reflector reaches optimal output at about 6-8''. Mercury vapor bulbs vary depending on manufacturer and wattage. The 26w coils have output similar to a T8 and the 13w coils aren't really powerful enough to provide adequate UVB at safe distances.
Taterbug put together a really great site that describes this in better detail. It's worth checking out if you're interested in learning more about lighting setups. https://sites.google.com/site/thelizardmadness/lighting-guides
https://sites.google.com/site/thelizardmadness/photogradient
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