Products

Figure 8 Puffer

£14.99

Fire Eel

£19.00

Firemouth Cichlid

£6.99

Firestone Rubber 1.00mm Pond Liner

£20.00

$The Betta Optical Refractometer is a hand-held instrument that has been specifically designed for aquarium use. It measures the salinity and specific gravity of sea water by refractive index. It is easy to read, easy to calibrate and features automatic temperature compensation for more accurate readings. It is recommended that you use regularly to monitor your water. Suitable for use in marine aquariums.$