Marineland Replacement Glass Canopy Hinge 1/8 inch 30 inches Long 2 pack nano protein skimmer the ppm level of these

the ppm level of these elements must be maintained within a narrow band and therefore should only be dosed according to a measured requirement of the aquarium

and are typically not desirable because of the resultant appearance of the system and the difficulty of maintaining healthy aquarium inhabitants

no added dyes or chemicals

For these reasons

Marineland Replacement Glass Canopy Hinge 1/8 inch 30 inches Long 2 pack nano protein skimmer the ppm level of theseThis will replace your original Marineland hinge on your glass tops. Made for glass thickness if 1 8 inch and comes in 30 inches long. This is a set of 2 hinges each 30 inches long.