HopStop Protection prevents fish from jumping out of the aquarium Prevents active fish from jumping out of the tank at night. Content: 6 supports (combfix) and 3 plastic discs at approx. 480 x 50 mm

4 / 6mm adjustment valve Regulating valve for hose with a diameter of 4/6 mm. The tap can be used for both air and water (nitrate reducer and calcium reactor). High quality plastic guaranteeing a long service life. Easy to adjust flow rate with precision.

T Reduction 16/22 - 4/6mm Reduction T is used for the connection of bypass filters like p. ex. the nitrate reducer or the calcium reactor.

T Reduction 12/16 - 4/6mm Reduction T is used for the connection of bypass filters like p. ex. the nitrate reducer or the calcium reactor.

Pressure PVC pipe T 40mm

Pipe holder Holder for 6 mm CO2-hose to fi t onto glass of up to 10 mm in thickness.

Digital thermometer T-meter twin External double-display Thermometer Large double LCD display simultaneously showing aquarium & ambient temperature. Selectable temperature unit: ºC or ºF. With adhesive tape at back side for easy putting on aquarium tank Ambient: –10 ~ +50 ºC (–14~+122 ºF) Aquarium: –50 ~ +70 ºC (–58 ~ +158 ºF) Resolution: 0.1...