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Hi,new to the forum,recently got two map turtles,think turned out to be a false and a mississippi.
Setting up a new larger tank for them,have a trigon aquarium and not sure what strength uv flourescents to use,it has two in it.
Read 2-5% for aquatics,the tubes are 15" from the top of the water so would two 2.5s be OK.
Thanks for any help
 

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Yeah that would be fine.

2 5% tubes won't equal 10% but rather 5% over a bigger area if that makes sense.

don't forget reflectors too if you haven't already got some.
 

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This is a high light requirement species developing over vast time in a high index area.

It is highly unlikely if not impossible that any T8 tech will offer accurate Wild Re-Creation in a tank of this size and for your species.

UVB is a weak group of wavelengths, as such its potency or "index" reduces in power the further light has to travel.

To achieve the min suggested Index of 4-5 at 15" from the reflected lamp to the basking point can only be achieved with HO T5 tech. In fact the safest and simplest way to do this is to use a product like the 55W D3+ UVFLOOD fitted over a basking point around 12" from the top of the shell.

This would Supply for their needs.

John,
 
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