GHL 4-PUMP DOSER 2.1 - SA SET (Black) shrimp and to enhance the rate

and to enhance the rate of nitrification and denitrification

"The Whale pump" by Roman J

because of flushing out some fine material

Charcoal Grey

The New Prime and Hydras share the same cluster of LEDs with the new optics

GHL 4-PUMP DOSER 2.1 - SA SET (Black) shrimp and to enhance the rateGHL Doser 2. 1 SA, 4 pumps Keep your water values permanently stable: With GHL metering pumps the automatic addition of fluids is a breeze. Dose trace elements, fertilizers, balling salts, or water, precisely to the milliliter. Programming is done by specifying the daily dose amount and the number of doses per day. Alternatively, you can also use timer functions if you wish to dose at specific times. The high quality materials inside the doser ensure