is this ok? im going away for the weekend and i wanted to keep them on in my planted tank only just to help growth and maybe leave mom a bit less hassle, but is this also ok for the fish or is darkness essential?
put a timer on it, for fish it does have an effect over an extended period, planted tanks you may also get a nasty algae bloom with a short time if you're pumping co2. imo
When I turn my light on in my 55 gallon my bass gets pissed and starts whipping his tail across the water and takes his anger out on the two bluegills until I turn the light off.