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When Aquascaping or in a planted Aquarium, the CO2 content should move from 20 to 30 mg / l. This ensures an adequate supply of water plants in your Aquarium for a beautiful vegetation. A available corresponding test liquid is e.g. CO2 Check by Aqua Rebell.

In general, the CO2 Drop Checker, or CO2-duration tests of glass are made and blend optically very inconspicuous into your layout. They are installed usually with a suction cup and should be fixed in a visible place, at the flows past the Aquarium water.

CO2 - Permanent Tests • the CO2 level always in view!

For control and display of the CO2 content in the water itself, CO2 Drop Checker, respectively CO2 endurance tests are, or particularly well. About a test liquid, the CO2 level of the water through a corresponding color (usually 1-2 hour delay) appears.

For control and display of the CO2 content in the water itself, CO2 Drop Checker, respectively CO2 endurance tests are, or particularly well. About a test liquid, the CO2 level of the water... read more »

CO2 - Permanent Tests • the CO2 level always in view!

For control and display of the CO2 content in the water itself, CO2 Drop Checker, respectively CO2 endurance tests are, or particularly well. About a test liquid, the CO2 level of the water through a corresponding color (usually 1-2 hour delay) appears.

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GH-GOODS - CO2 Hang-On Permanent Test, Glass (Dropchecker)

CO2 Hang-On Permanent Test, Glass (Drop Checker)

from 6.90 €

GH-GOODS - CO2 - Permanent Test, Glass (Dropchecker) in two different sizes

Permanent CO2 Test, glass bowl

from 7.95 €

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GH-GOODS - CO2 - Permanent Test / Long-Term Test, Glass Sphere (Dropchecker)

CO2 - Permanent Test, glass ball (Dropchecker)

9.50 €

Aqua-Noa CO2 hose, various lengths, in transparent or black

CO2 Hose / Tube Easyflex

from 2.90 €

1,5 m (1.93 € / 1 m)

AQUA-NOA - CO2 test solution / indicator fluid, 20 and 30 mg/l CO2

CO2 Check test solution (indicator fluid)

from 5.80 €

20 ml (29.00 € / 100 ml)

Aqua-Noa CO2 endurance test / long-term test - Drop Checker

CO2 Drop Checker (long time check)

from 8.40 €

CO2 U-Pipe S, 11 mm

CO2 U-Pipe S, 11 mm

5.90 €

CO2 Special Indicator reagent + pH

CO2 Special Indicator reagent + pH

8.50 €

Permanent CO2 test Correct (Dennerle Egg)

Permanent CO2 test Correct (Dennerle Egg)

18.90 €

Permanent CO2 Test - Maxi (Drop Checker)

Permanent CO2 Test - Maxi (Drop Checker)

18.95 €

Permanent CO2 Test (Drop Checker)

Permanent CO2 Test (Drop Checker)

9.95 €

CO2 Check 30 mg/l ndicator for permanent CO2 test, 250 ml

CO2 Check 30 mg/l ndicator for permanent CO2 test, 250 ml

15.90 €

0,25 l (63.60 € / 1 l)

CO2 Check 20 mg/l Indicator for permanent CO2 test, 250 ml

CO2 Check 20 mg/l Indicator for permanent CO2 test, 250 ml

15.90 €

0,25 l (63.60 € / 1 l)

Joint Glass, 11 mm (JG-001)

Joint Glass, 11 mm (JG-001)

7.95 €

Drop Checker

49.90 €

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