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| Best Seller  | Sera CO2-Tabs Plus 20 Tabl 3.2 oz. Aquarium Test Kits Sera CO2 tablets for sera CO2-Start. CO2 is the basic plant nutrient and allows adjusting a lightly acidic pH value as it is preferred by many plants and fish. more | go to store |
 | Sera gH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits Sera gH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits more | FREE shipping go to store |
| Best Seller  | sera CO2-Tabs Plus 20 Tabl. 3.2 oz. Aquarium Test Kits sera CO2-Tabs Plus 20 Tabl. 3.2 oz. Aquarium Test Kits Sera CO2 tablets for sera CO2-Start. CO2 is the basic plant nutrient and allows adjusting a lightly acidic pH value as it is preferred by many plants and fish. - Country Of Origin : Germany - The... more | $32.24 $26.03 FREE shipping go to store |
 | Sera pH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits Makes it easy to monitor the pH value in fresh and marine water and ponds. For approx. 100 measurements. In case of too low pH values we recommend sera KH/pH-plus (in freshwater aquariums) or sera pond bio balance (in ponds) in case of too high values... more | go to store |
 | Sera pH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits Makes it easy to monitor the pH value in fresh and marine water and ponds. For approx. 100 measurements. In case of too low pH values we recommend sera KH/pH-plus (in freshwater aquariums) or sera pond bio balance (in ponds) in case of too high values... more | go to store |
 | Sera gH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits For approx. 420°dGH. In case of too low GH values we recommend sera mineral salt. High total hardness levels can be lowered by mixing in R/O water. For creating soft water we recommend adding sera Blackwater aqua tan or filtering through sera super peat. more | go to store |
 | Sera pH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits Makes it easy to monitor the pH value in fresh and marine water and ponds. For approx. 100 measurements. In case of too low pH values we recommend sera KH/pH-plus (in freshwater aquariums) or sera pond bio balance (in ponds) in case of too high values... more | go to store |
 | sera gH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits sera gH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits more | FREE shipping go to store |
 | Sera gH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits For approx. 420°dGH. In case of too low GH values we recommend sera mineral salt. High total hardness levels can be lowered by mixing in R/O water. For creating soft water we recommend adding sera Blackwater aqua tan or filtering through sera super peat. more | go to store |
 | Sera gH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits For approx. 420°dGH. In case of too low GH values we recommend sera mineral salt. High total hardness levels can be lowered by mixing in R/O water. For creating soft water we recommend adding sera Blackwater aqua tan or filtering through sera super peat. more | go to store |
 | sera kH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits sera kH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits more | FREE shipping go to store |
 | sera nitrite-Test (NO2) 2X15 ml 0.5 fl.oz. Aquarium Test Kits Nitrite (NO2) is among the most toxic substances for fish in aquariums. It can enrich in the water in case of insufficient biological filtration. The sera NO2-Test allows monitoring the nitrite level in fresh and marine water easily and reliably. We... more | FREE shipping go to store |
 | Sera gH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits For approx. 420°dGH. In case of too low GH values we recommend sera mineral salt. High total hardness levels can be lowered by mixing in R/O water. For creating soft water we recommend adding sera Blackwater aqua tan or filtering through sera super peat. more | go to store |
 | Sera gH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits For approx. 420°dGH. In case of too low GH values we recommend sera mineral salt. High total hardness levels can be lowered by mixing in R/O water. For creating soft water we recommend adding sera Blackwater aqua tan or filtering through sera super peat. more | go to store |
 | Sera kH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits Sera kH-Test 15 ml 0.5 fl.oz. Aquarium Test Kits more | FREE shipping go to store |
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