Chemboys - pH Down MAX 5 Gallon spl_jondon Media sold separately: You can

Media sold separately: You can use your choice of hydroponic media

has a 12" fan blade diameter

Most likely you have not

The HI981421 GroLine Monitor for Hydroponic Nutrients provides around-the-clock

After initial installation

Chemboys - pH Down MAX 5 Gallon spl_jondon Media sold separately: You canup to 8x stronger than General Hydroponics; up to 1. 5 3x stronger than Advanced Nutrients No Dyes (Why do others add dyes?) Promotes plant growth and overall healthy plants Promotes pH stability THIS STUFF IS STRONG. BE VERY CAREFUL WEAR SAFETY EQUIPMENT. DO NOT MIX WITH pH UP AND YOU MUST ALWAYS DILUTE BY ADDING SMALL AMOUNTS TO WATER SLOWLY AND SAFELY, BEFORE USING.