Why are you letting your plants starve?

EVERY aquarium plant needs carbon dioxide (CO2) to survive and to grow! Fast growing species especially need a lot of CO2, and red fish species need CO2 fertilisation to survive. JBL has developed a new and elegant permanent test for the CO2 content which also indicates the pH value, so that each aquarium owner knows how much CO2 is in the aquarium water.

The real advantage of the new CO2 test is that it is filled with a special indicator instead of aquarium water, because that is the only way to indicate the correct CO2 content of the water without the acids present in the water distorting the value. A further professional touch is the enclosed sticker selection, which allows the user to select a colour scale of the pH value - also indicated – which suits its carbonate hardness. The colour indicated means a higher pH value with hard water than with soft water. The test user thus has a choice of 3 stickers for different degrees of hardness and the aquarist can easily monitor the actual pH value in the aquarium 24 hours a day.

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