1. B

    ISTA Diffuser big bubbles help

    Just bought a ISTA ceramic diffuser and it is only shooting big bubbles. Package says this should fix after 24 hours but it’s been 2 days now. The diffuser is round and white in colour. Anyone use this diffuser or familiar with what’s going on ?
  2. Hesham

    ISTA CO2 DIFFUSER SET- Drop Checker no color change !!

    Hi, Kindly note i've purchased (CO2 DIFFUSER SET-Code: I-512),for my (nano tank 8 litres) but the problem is my Drop Checker didn't show any color change till now (always Blue), Solutions i've tried: Replacing the Co2 Cartridge with a new one. Adding the Drop Checker to my (big tank 80 litres...