The IceCap 50 PRO Hang-On-Back Turf Scrubber exports nitrate and phosphate by deliberately growing algae in a controlled spot instead of letting it spread through the display — water trickles over an LED-illuminated screen, algae colonizes it, and you harvest and discard the algae (and the nutrients it absorbed) every couple weeks. No sump or plumbing required. Rating: aquariums up to 80 gallons Screen size: 7.4in x 3.5in, lit from both sides LED: 6 watts, DC24V Included feed pump: EVO-400, 6 watts, max flow rate 105 GPH Fits tank rims: 1/4in to 1-3/8in Includes: everything needed — plug-and-play with the included EVO-400 pump Harvesting: remove the top, loosen the quick-release union, lift out the screen, and scrape buildup off under running water — typically every 1-3 weeks. Leave some algae behind to seed faster regrowth rather than scraping the screen completely clean.Best practice: run the LED lights on a reverse photoperiod from your display (opposite 12-hour schedule) to help stabilize tank pH overnight.Compatible replacement parts: EVO-400 feed pumps and screens for the 50 PRO.
