Red Sea Reefer 350 & 450 Replacement Bubble Trap Sponge (Red Sea Part # 42186) Unbranded The specialized blend of nutrients

The specialized blend of nutrients includes nine different algae and seaweed species such as red seaweed

Designed with the rider's comfort in mind with inner panels to prevent rubbing and provide superior grip even in wet conditions

this collar is easy to use with no adjustments needed

Available in a range of conservative colors

For small nano reefs with a medium light demand the coverage is 14" (with the bottom of the light 4" above the water)

Red Sea Reefer 350 & 450 Replacement Bubble Trap Sponge (Red Sea Part # 42186) Unbranded The specialized blend of nutrientsReplacement Red Sea Reefer 350 & 450 Bubble Trap Sponge. 16. 5" X 7. 5" X 1. 5". Red Sea Part # 42186.