Pay in 4 interest-free payments of $7.75 Learn more
Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
Overview: Safely increases magnesium concentration in all marine and reef aquaria
Add to this 4 drops of Si-2 (low resolution 2 drops) reagent and swirl the contents gently for 30 seconds
For glass and acrylic tanks 3/4″ and 1″ thick
discontinue use and allow the level to decrease until the animals look healthy again
Algae Free Upgrade Kit to Plus with Scrapers sera Scraper Overview: Safely increases magnesium concentrationThe scraper upgrade kit is for all Piranha, Hammerhead and Tiger Shark cleaning magnets. It converts them to the Float Plus with the replaceable scraper blades for glass and acrylic. Each Kit includes: 1 interior assembly with Velcro. 1 acrylic safe pad. 1 black plastic scraper blade for acrylic aquariums. 1 stainless steel scraper for glass aquariums.