Introduction: Aquarium Scraper for Stubborn Algae

For the hard to remove algae on aquarium glass (not for use on acrylic).

Step 1: What You Will Need

1. 3/8 in wood dowel (cut to appropriate length for your aquarium).

2. Single-edge razor blade.

3. Small machine screw.

4. Super glue.

Step 2: Saw 45 Degree Notch

Make notch only wide enough for the razor blade holder edge to fit snugly.

Step 3: Saw or Sand End Parallel to Notch

Step 4: Drill Pilot Hole for Machine Screw

Drill through to slot.

Step 5: Insert Blade and Tighten With Screw

Tape cutting edge while inserting and tightening.

Step 6: Add Super Glue to Underside of Blade Dowel Interface

Step 7: Watch Algae Disappear

Rinse and dry after use, especially if used in a saltwater aquarium.

You can prolong blade life by spraying with lacquer.

Blade can be easily replaced and re-glued.

Remember, DO NOT USE ON ACRYLIC.

Step 8: