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i have a 30 gal. with 2 emerald crabs, 1 sally lightfoot crab, and 1 turbo snail...... do i need more? it's like they cant keep up or do i need a different thing to eat this stuff?
The idea here is to prevent this algae from growing, not add livestock and expect that to care of the problem.
First and foremost, are you using ro/di water to make your saltwater and top offs due to evaporation? Hair algae comes from high nitrates and/or high phosphate levels in your water. If you are using regular tap water chances are you are constantly adding phosphate into the water which fuels your problem. Regular water changes with ro/di water will keep your nitrate and phosphate levels low enough so that hair algae will not be a problem.