lowering tank temp

[bullit67]

Cool thanks

[bullit67]

Well so much for the fan on the sump holding the temp it is still rising just not as fast so I sat a small fan on my water cooler next to the tank and aimed it under the light I hope this helps

[untamed]

I assume you aimed the sump fan to push air down or across the surface. If that didn't work, add a 2nd one. Watch your evaporation rate because if this works you'll increase it a lot. Evaporation = cooling.

I don't think that removing the hot air around the light is going to make the difference. I think you're heating the rock below the water line.