Mars Hydro Halloween Mystery Giveaway - 2 Winners

Enter to win the Mars Hydro Halloween Mystery Giveaway - 2 Winners.
Two winners (one US grower and one EU grower) each get a mystery Mars Hydro grow prize; the prizes are revealed October 31, 2026.
Open to residents of the US and the European Union. Ends October 30, 2026 at 11:59 PM EDT.
To enter, like and share the Mars Hydro giveaway post on X and comment your favorite Halloween costume; adding a photo earns a bonus entry. Winners are revealed on October 31, 2026.