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Like Ed I believe that providing UVb for tads may not only be unnecessary but may be potentially damaging to tadpole development. When providing the histrionica with a UVb session I noticed a visible tad in one of the brom axils would 'go deep' when the bulb was switched on. Finding another tad in the BriBri viv I tried with the UVb directed on it's axil - similarly the tad 'went deep'.
This happened several times so my conclusions were that the tad knew what it needed and UVb wasn't on it's list.
Since that incident I have never thought of providing UVb for my tads. I also notice that many now provide constant UVb for their frogs. As I have mentioned previously I decided not to do this as after about 30 mins 'sunbathing' under a 10% Arcadia bulb every frog I have leaves the 'UVb lit' area and re emerge when the bulb is switched off.
I have also started to open the doors on some of the vivs with frogs I trust won't jump out. Of course I sit with the lamp ensuring no escapes and I have noticed that the frogs seem to have an awareness of UVb strength as they 'bathe' about 3 inches farther back than when the doors are closed and the UVb is going through the Optiwhite glass I use on all my viv doors. Coincidence - I don't know yet - I should have a better idea after a few more months experimenting.
Regards
Graham
This happened several times so my conclusions were that the tad knew what it needed and UVb wasn't on it's list.
Since that incident I have never thought of providing UVb for my tads. I also notice that many now provide constant UVb for their frogs. As I have mentioned previously I decided not to do this as after about 30 mins 'sunbathing' under a 10% Arcadia bulb every frog I have leaves the 'UVb lit' area and re emerge when the bulb is switched off.
I have also started to open the doors on some of the vivs with frogs I trust won't jump out. Of course I sit with the lamp ensuring no escapes and I have noticed that the frogs seem to have an awareness of UVb strength as they 'bathe' about 3 inches farther back than when the doors are closed and the UVb is going through the Optiwhite glass I use on all my viv doors. Coincidence - I don't know yet - I should have a better idea after a few more months experimenting.
Regards
Graham