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Compare to color chart on tube
The reaction between the chlorine and DPD reagent causes a pink tint in the sample
provided the unit is not allowed to dry out
Purigen generally ignores simple elemental compounds
The dosage is very economical : 10 ml per 100 litres aquarium water every week
Java Fern (Microsorum pteropus) (wood) (small) chiller Compare to color chart onNative to southeast Asia, Java Fern, Microsorum pteropus, is found attached to roots and rocks in streams and rivers, along riverbanks, and in marshes. Rhizome should be anchored to wood or stone. If planted in substrate, ensure rhizome is never buried, to avoid rot. Leaves grow 6 12 inches dependent on available nutrient. Thrives with regular fertilization. Black areas on leaves are sporangia, reproductive organs, not necessarily symptom of
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