Eshopps Micron Bag Holder with Bulkhead Model:PF-LG The Marine Hydrometer takes a

The Marine Hydrometer takes a true water sample at 15cm depth

Always use the clear supernatant (top solution) only and do not allow undissolved material to enter the aquarium

Upright support height 45cm

Sets and stabilizes pH to 7

Wrap it around branches or cage furniture

Eshopps Micron Bag Holder with Bulkhead Model:PF-LG The Marine Hydrometer takes aEshopps Micron Bag Holders are easy to install filter bag holder for any sump filtration system. The Micron Bag Holder enhances mechanical filtration, which helps reduce the amount of ammonia producing organic matter in your aquarium. It also helps prevent larger objects such as sand, crabs, and snails from damaging pump motors, as well as unsightly aquarium debris. Micron bag & Bulkhead included. Requires 1 3 8" space to hang. PF SM Dimensions 5"x 6"