Help with pig nose turtle

[Sky14]

This turtle is my cousins first turtle and we are a bit worried about the coloration on his shell now
I’m not sure if it’s fungus or lack of calcium

Here some pics any advice would help

He’s in a 250 gallon tank with no direct sunlight

 

[Deadliestviper7]

Needs uvb light

 

[Sky14]

What type of uvb light thank you
And how’s long do you use it for the turtle is going to be with a arowana

Thanks

 

[Deadliestviper7]

At least 8 hours of light a day,and since he is in aquatic setup use a longer light (most lights that use uvb will be fine)

 

[Sky14]

Thank you

 

[itrebebag99]

If its possible to keep him outside during the summer, that may help, too. I've heard that turtles tend to do much better in outdoor ponds.

 

[Deadliestviper7]

If its possible to keep him outside during the summer, that may help, too. I've heard that turtles tend to do much better in outdoor ponds.

Definitely agree with above statement

 

[Sky14]

I wish maybe one day I can have an outdoor pond

 

[itrebebag99]

I wish maybe one day I can have an outdoor pond

You could just get a 300 gallon rubbermaid stock tank, and set it out beside your house. This would be realitively easy to cover against preadators, and heat when it is cool out. Maybe your turtle is deficient on calcium, or some vitamin. You could try fortifying its food as well.

 

[Sky14]

What do you mean by fortifying