I have my aquariums in the basement and all but one receive no sunlight. I often wonder about the effects that artificial light has on my fish. Obviously without light they would not survive or best case would probably have a lot of issues. I cannot image living my entire life under an LED but I suppose we are much different than fish. Noticeably my fish act much more naturally in very dim light but that is not so conducive for many plants. Does anyone have any anecdotal evidence or know of any studies pertaining to this topic? Currently I don’t have the opportunity to do an experiment…perhaps next year.