Flipper DeepSee Magnified Viewer - Nano Gourami 0 is also recommended for

0 is also recommended for use above screen covers which can filter out up to 50% of the UVB wavelengths

grazing on nuisance algae

and non-staining chelated copper concentrate delivering relief from unwelcome parasites

For use on glass tanks up to 6mm (1/4") thickness or about 25 Gallons

Flipper DeepSee Magnified Viewer - Nano Gourami 0 is also recommended forProduct Details Optical grade magnifying lens with 3" viewing portal is perfect for aquarium photography with focal range approximately 2 to 6 inches. Held in place by strong rare earth magnets for use on tanks up to 3 8" (10mm) tank wall thickness Easily moves around the tank for viewing from any location Great at checking for any early signs of disease or pests on your reef coral or fish! Designed for Nano size tanks Deep See is Safe for both glass