ESHOPPS Magnetic Probe Holder protein skimmer toxic compounds and yellowing compounds

toxic compounds and yellowing compounds and also proteins

The pond water is pressed with a pond pump through the housing

crude ash 12 %

and trace elements

ESHOPPS Magnetic Probe Holder protein skimmer toxic compounds and yellowing compoundsDescriptions Made of acrylic, this aquarium probe holder is a secure and reliable placement and holes up to three probes to test different aquarium parameters. The powerful magnets last longer than suction cup probe holders. The Magnetic Probe Holder is ideal for use with pH or temperature probes that may electronically monitor aquarium parameters on a continuous basis. The heavy acrylic construction outlasts suction cup style probe holders without