My 90g Fowler gets a short amount (no more then 20 min) of direct sunlight thru a tall, narrow window. Normally the shade is drawn but it happened to be open one day and activity in the tank changed a bit.
The cleaner shrimp seemed to follow the light across the tank as well as the Midas Blenny.
I'll watch for algae, water temp seems unaffected...any possible problems?
Could it help color the LR