The photo shows wet gravel. dry gravel is dark gray in color. NATURAL BLACK GRAVEL Beautiful natural rinsed gravel substrate. its color does not stress the fish. ideal for plants, shrimps, tropical fish tankdoes not affect the water parametersit guarantees good rooting, fast growth and attractive appearance of plants. Ideal for bottom fish, Diameter about 2-5mm, Excellent substrate for all types of biotopes, especially recommended for plant aquariums,It guarantees very good rooting and rapid growth and attractive appearance of plants.Basalt colour has a great impact on the coloration of fish and shrimps.Indifferent to water parameters (does not change the pH value and water hardness).No toxic To create a substrate layer 4-5 cm thick in an aquarium with a given bottom surface, you need:40 x 25 cm – 10 kg60 x 30 cm – 15 kg80 x 35 cm – 20 kg00 x 40 cm – 25 kg120 x 40 cm – 30 kg150 x 50 cm – 50 kg200 x 50 cm – 80 kg
