Don't write off LEDs. They are a lot better than they used to be. I have them in all 4 of my tanks and no algae problems. Two of these came with the tanks (Aqua One and Fluval Flex). The third also came with the tank but it was a super budget tank which cost less than many light units on their own. The fourth is a Nicrew. The only thing to look out for is intensity. The manufacturers are all racing to produce more and brighter lights which may be too bright in a low tech tank. Mine all have dimmers except for the Aqua One, and that tank does have a bit <coff> of frogbit to filter the lights.