For me the dawn effect is from my MH hood. The bulbs use about 10-15 minuts before full effect is had, and even if it's kinda quick it's enough not to freak out the fish.
I use a 9W blue bulb at night. The main reason for the night effekt it so that my fish wount jump out when the light go out. So far it's been working out OK, just som silver hatchet jumping out :?
I use a 9W blue bulb at night. The main reason for the night effekt it so that my fish wount jump out when the light go out. So far it's been working out OK, just som silver hatchet jumping out :?