Six Ways to Control Your Aquarium Algae Problem. By Lev Ingman
- Stop overfeeding!!! If you feed too much, the leftover food is basically a fertilizer for unwanted algae.
- Replace old light bulbs. After 9 months to a year, the spectrum of light that your bulbs release changes to a spectrum preferred by algae.
- Make sure the tap water you are using is not phosphate rich, because phosphate is an algae fertilizer. If your tap has lots of phosphate / nutrients then use RO/DI water.
- Do more water changes. This will reduce waste levels / nutrients that algae needs to grow
- Replace your mechanical and chemical filtration media so that you can remove as much waste as possible.
- In a fresh water tank get algae eaters, and plants to eat and compete with algae respectfully. In a salt-water tank, get a cleaning crew to eat the algae. (Sometimes this is tricky because many fish species will these invertebrates)