Why Does Vape Juice Turn Brown in the Tank selbyvapes My liquid is turning brown : r Vaping Liquides cigarette lectronique TipTopVape.fr Good day, Recently my koi water keeps turning brown, I usually change 25 30% weekly or every 2 weeks but its still turning brown and its difficult to see the fishes , The filter i use is the cpf 2500 What caused the brown coolant color and how to fix it? E Liquide USA Classic D'Lice 50ml Votre spcialiste e cigarettes, e liquides en Suisse