If you chose to link up your light system(s) to a Maxi Controller (recommended-and an astonishing 160 units can be accommodated
That element is silica
Compatible with Titan Controls® CO2 Controllers or other 120 Volt controllers and timers
Conductivity and temperature do not need to be calibrated as this is locked in during manufacture
Diatomaceous Earth - Be Green - 200 g 5x5x6.6FT If you chose to linkDoktor Doom Diatomaceous Earth Dust is for use in and around apartments, homes, and other residential spaces Can be mixed with attractants (approx. 50: 50) such as icing sugar or food powders (cereal, nut, fruit, soup mixes) Not harmful to animals, fish, fowl, or food, when used as directed Ideal for killing crawling insects such as ants, bed bugs, carpet beetles, cockroaches, fleas and spiders Can be used indoors or outdoors Made in Canada