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I need to spray a fungicide because with high humidity I get mold/fungi end of flower. Which pesticides keep the plants mold free?

I am wondering if AISI-302 stainless steel parts are suited for permantent contact with the nutrients? It is because I am thinking about using a non return valve which in the reservoir which has AISI-302 grade parts. I don't know how aggressive the nutrients are to metals and if this kind of...

At some times I need to carry daily two 8 gallons (2x 30 liters) of water to my grow room. But they are super noisy while carrying because of swashing sounds. I am using these kind of canisters (see picture) Problem is that you cant fill them completely with water. The water inlet sits a bit...

I dont want to use airstones. I need to floom a rain water barell with the size of around 500 liters or 130 gallons. And then I need to floom also a 150 liter reservoir or around 40 gallons. I am not really sure what pump (specs) I should choose for flooming. Also how often I need to floom...

I need to make sure that the end of my hose which sucks the nutrients stays always submerged. Is there maybe something heavy that I can attach to the end of the hose? Unfortunately I have no idea what that could be...

Hi, I only knew the sound levels of submersible pumps and they are very quiet, obviously because they are underwater. This time I decided to go with a pump like this This one sucks the water from the outside. I did choose it because it is strong and has no parts which can be corroded from...

Hi, I pull my air inside the room from a big inlet in the wall which is located higher than the ceiling of my grow room. That means the sonoduct will enter the room from the top. Then the sonoduct goes downwards to the floor. It is in the corner of one room. Now my question is where to cut the...

Hi, I have ducting in diameter of 355mm or 14 inch. I want to seal my room, so how to I close the air gaps where the ducting goes through my drywall? I used galvanized metal sheet ducting parts to go through the drywall and then connected sonoduct hoses. Sometimes the gaps between the...

Hi, I have a new property and I am considering to switch operations over there. Unfortunately there is no cellar. And growing would only be possible in 1st floor. And 1st floor has big and long windows which you can see from street. So is there any way to make the windows stealthy without...

Hi, I wondered how much ultra violet radiation is there in double ended HID or HID lamps in general? I already have glasses, but how about my plastic stuff in that room, will it degrade like when in the sun outside? e.g. I can buy a switch box in uv stable plastic and a not uv resistant plastic...

I planted around 230 seedlings in rockwool. They are not growing but the leaves are turning yellow and more and more of the seedlings are dying. I already lost more than 30 because of that. I really don't know what it is. I have HID lightning 400W in 120cm distance. I have running a big...

I did read that some people buy fertilizer from JRPeters and save a lot of money. Can you recommend me some fertilizer for hydroponics (rockwool) so I can save money? I am based in europe. At the moment I use General Hydroponics Flora series. I already plan to make CalMag myself as I am using...

Hi, my humidity dome is now filled with over 230 starter cubes (rockwool) which I soaked with tap water before putting the seeds in them. Temperature in the dome is set at 27 degree celsius or around 80 degree Fahrenheit. Now I worry that my cubes are maybe too wet or that the humidity in the...

Hey guys, I need to carry water to my place unless I redrill the well. To manage this I bought two 30 liter water canisters. Now, how can I lift these canisters into and out of my car without somebody noticing that I carry liquids or water? I was thinking to put one canister into a bag? But...

Before get started I need to know some last things. My first grow I will start from seedlings (lack of mother plants/clones). I will do rockwool. (first in heated humidity dome then transfer into ebb and flow tables) I need to know if I should water the seedling rockwool cubes with some...

What can I put under my 130 gallon reservoir so it doesn't loose heat too fast? Actually there are antivibration mats for washing machines. Are they good? What insulates good and is strong enough for a reservoir that size? Other question: What can I use for insulating around my reservoir...

I need a mini split for keeping the temps in my rooms right. Is for the following setting 24.000 BTUs enough? I have two sealed rooms (flower and motherplants), total 16.7 x 12.2 x 8.5 feet (1731 cubicfeet) (5.10m x 3.70m x 2.6m) which are side by side and have between air circulation by a big...

Hey guys, need a short advice. My two rooms together have the size: 16.7 x 12.2 x 8.5 feet (1731 cubicfeet) (5.10m x 3.70m x 2.6m). One room flowering with 4x600Watt double ended and the other room is mother plants and clones. My plan now is to buy an EC-fan which I will use for air circulation...

Hi, I was planning to keep 4 mother plants. 2 strains. So it is two plants per strain. I want maybe 70 to 100 clones of each strain every two months. So that would be 150 to 200 clones every two months. Do you think two motherplants per strain will give me these results? Never had a mother plant...

Hi, in my reservoir (a big rectangle rain barell) there are three thin galvanized stabilizators. They go from one side to the other of the rain barell and their purpose is to prevent the rain barell from breaking when it is filled, because of the water pressure on the side walls. See the small...