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Has anyone tried the the coolstacks or California lightworks GH PRO 340...

Hi, A greenhouse is somewhat a grow room... Sorry, if I'm in the wrong forum. looking into supplemental LED lighting for a greenhouse I came across a few issues and more questions. My trusted light guy on alibaba says a lot are going with the typical bar design used by hortibloom, spydrx and...

Hi, It seems to be a bit of a problem to get oyster shell flour in my country, although everybody is eating oysters... I have found oyster shell grit, which is used for chicken. Is it interchangable?

Hi, I'm looking to contract beneficial insects as a kill team? It's a tough mission... A mission they might not come back from... But glory and my undying thanks awaits those who accept this challenge! Not all soldiers are equal and some just don't do well in a team. The bloodthirst and living...

Hi, Has anyone ever used a product called Agrotech C-NO. "C-No-Insects fights spider mites, thrips and mosquitoes by creating a static field that gives the insects, larvae and eggs a shock within 72 hours. It also eliminates fungi, bad bacteria and viruses. C-No-Insects is a ready to use...

Hi, does anybody know, what brand Frenchy Cannoli uses for his cold water extraction. I don't mean the small blue thing, but the big stainless steel tank one. It doesn't have to be the same one, just looking for some bulk cold water extractors made of stainless steel. I know the pure pressure...

Hi, the whole internet is full of the unfertile type of manure regarding compost tea dilutions. Some people say straight up, some say 1:1 going up to 1:20. So my dear co-members of this forum, what are your experiences. I'm planning a LEGAL 12000 plant (...non US) grow and budgeting is a...

Hi, I'm to embark on a medical grow op. For our first season we will have 12000 auto plants growing on 1 ha. Since I'm used to a bit less plants in an indoor environment, I'm searching everywhere for a "shopping list". We're looking to start off the soil with green manure and would like to...

Hi, to all GMP compliant, licensed growers out there: Are there any firms that help with obtaining GACP/GMP compliance, that you would recommend? Not expecting many answers on this one... :lol:

Hi, I'm looking to grow outdoor at 1600m/5249ft in a tropical highland climate. Anybody got recommendations on high altitude autoflowering strains? There won't be that many, but please let it rain recommendations!

Hi everybody, can anybody help me with how to calculate cooling requirements for a greenhouse?

Hi there, I need some help with correct fan sizing for a 30m x 8.5m x 3.35m(h)/ 100' x 28' x 11'(h). The added challenges are having to push or pull everything geothermal tubing, whilst not being so loud/power hungry. There is a lot to plan and not enough info readily available on the topic. I...

Hi Y'all, Having been around growers most of my life in US and EU, I saw growers in the US growing perpetually, always going for big plants with long veg periods, whilst EU, predominantly Dutch growers, would let the clone root and put it directly into bloom in a SOG setting. I mostly know the...

Hi everybody, I've been growing Critical, White Widow and Shiva Skunk for quite some time now in a 5'x5' SOG. There is no veg, clones go directly to flowering. These plants can be stacked close together to fit 100 plants in a 5x5. Now my question: Could you guys recommend other strains that...