Are you using Reverse Osmosis or Dionized water? Most significant algae problems are caused
by not using RO or DI water.
Most hobbyist test kits wont read a
tremendously accurate silicate or phosphate test.
Problem algae is usually traced to water, over feeding, light bulbs past their life
expectancy, low pH and not using Kalkwasser, insufficient skimming
Simplified Reefkeeping
