RadaR
The things we do for our fish..
is sunlight even worse for the tank?
Think it just like you would aquarium light. If you have too much of it without the neccasary CO2, nutrients and flow, then it is problematic. There's nothing special in sunlight that encourages algae more.
Can you suggest anywhere on-line where is decent?
Oh yes.
Aquaessentials
The Green Machine
Fluidsensor online