Is direct sunlight a substitute for T5 lighting?

[Eleni18]

Hi, me again. So...in my new larger setup, one side of the tank is in direct sunlight coming in from the window at about 1,50m distance, for about 4 hours daily. Also, my lights are a DIY ATI type fixture with 8 T5X39 bulbs, but the whole thing is 1m long as it was made to fit my old tank. I was thinking of maybe fixing it over the middle section of the tank and complementing with 2 small leds on either side, or moving it over to one side of the tank, which is 1,60 long by the way and using a larger led on the rest. But I am wondering if maybe direct sunlight could make up for the lack of T5 lighting on that side? So I could move the ATI type fixture on the side of the tank away from the window and let natural sunlight complement the T5 bulbs?

 

[Mastiffsrule]

Evening

Usually sunlight is just going to lead to extra heat and algae growth. Any benefit will be outweighed by the negatives.