Algae Scraper for Acrylic Aquariums, 18" by API $8.69 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity We are currently experiencing temporary outages for select pet products due to vendor shortages out of our control. We may contact you after placing your order to make substitutions or to update you on your order. We apologize for any inconvenience this may cause you. Add to cart Very durable algae scraper to use for cleaning aquarium walls. Scrapes algae off quickly and easily.