sera aqua-test box (Cu)Experienced aquarists check their aquarium water regularly. This allows taking measures, for instance against algae, quickly and easily, without the need to use chemicals.The sera aqua-test box contains the following test kits: pH value (pH) total hardness (GH) carbonate hardness (KH) ammonium/ammonia (NH4/NH3) nitrite (NO2) nitrate (NO3) phosphate (PO4) iron (Fe) and copper (Cu) or chlorine (Cl) sera aqua-test box (Cl)Experienced aquarists check their aquarium water regularly. This allows taking measures, for instance against algae, quickly and easily, without the need to use chemicals.The sera aqua-test box contains the following test kits: pH value total hardness carbonate hardness ammonium/ammonia nitrite nitrate phosphate iron and copper or chlorine
