hi folks ,can any1 help me locate these excellofizz co2 pucks as im having real problems locating them in the uk.
also any opinions on them will be appreciatted thanks.
co2 in ur g/room is around 500-650ppm put these tabs in and will release up2 1000+ ppm for up2 8 hours(so im informed)which can enhance your grow as lack of co2 can make your grow slow down and stunt them

but enriching them with co2 can help increase yield quality of smoke etc.

................................peace..................................
need a spliff......