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There are some devicces for sale that claim that they help to prevent bud rot and mildew amongst others. You hang the device in your room and it will kill the spores. This is such a device: They are also placed in hospitals, kitchens, bakery's, dentist, etc. to help prevent bacteria and...

I'm trying to research a little bit how much water your plants consume per day per 4 x 4. I'm doing some calculations for reservoirs and for a dehumidifier. So I am very curious about the experiences of growers here of how much water is consumed when the plants are at their peak of evaporation.

There are beautiful cloners in use by hydro growers. Often DIY and often with sprayers, airstones or venturi. But are there also growers who use a cloner with waterfalls or the principal of flooming?

Tried to look it up myself, but without succes. I see ledstrips available with 3000K, 4000K and 5000K. But no strips with 6000K and even higher. Do they exist?

On the internet I see different water pumps. Some are 12V / 24V and others are 110V / 220V. If you use such a pump in your house, it seems to me that a pump 110V / 220V would be easier. But what is the reason that a 12V / 24V could be better? Are they more reliable? Do they have a higher...

If you look at the websites of companies that sell hydro trays, you often see also the tables/stands for sale where you can place these on. Like these Most of these stands all have a kind of side rail. Probably to prevent the edges of the tray from bulging. Yet you also see stands that do...

Today I did a test run with a small led-strip that I adjusted to an aluminium strip with some tape that I got online for little money. It's this tape: https://www.aliexpress.com/item/4000145 ... b201603_53 In the description it is said that the Thermal conductivity: 1.5W / m-K. Now I know...

Well, they said they are willing to do it, but the title had to be catchy :) Anyway... PerfectPH is a technical device (not a nutrient or something you add to your nutes) that will keep your pH stable. Let's say between 5.7 to 6.3 (I did read different numbers, even up to 6.5) They, Torus...

A new device has recently been launched. It is called the PerfectPH and comes from a company called TorusHydro. They are also an advertiser now on rollitup and you can win one of their devices. https://www.rollitup.org/t/win-a-perfectph-auto-ph-balancer-for-hydroponics.997587/ It is a device...

I'm looking for what probably thousands of growers are looking for :) A strain that needs up to 8 weeks of flowering and that nevertheless has a really high yield. So now I am looking for feminized seeds that meet those conditions. The descriptions of the various seed banks are incorrect. A...

Waterfalls and flooming are just as effective as creating bubbles with an airstone (if not even more effective) However I do not see any plug&play cloners that are designed on this principle. They are either bubblecloners, cloners with sprayers or with venturi (and hybrids) Did anyone ever...

I bumped into some advertisements of this strain called Godzilla Glue. Although I know that seed banks always exaggerate, I was very surprised now. Because I read that this strain can yield 1.5 kg per M2 (3.3 pounds on 3.1 x 3.1) in a period of 8/9 weeks. I have searched for grow journals, but...

I am considering purchasing an AC in the future. Now I know approximately how much BTU or kW I will need. But I have a question: Is it better to buy a device that is just right, plus 10 or 20% to cope with the big heat spikes? (In extremely hot summer for example). Or is it better to...

For those with a chiller ... I understand that a chiller sucks up the water from your reservoir, cools it and then the cooled water comes back into your res. But if nothing needs to be cooled for some days, there will be stagnant water in the tube and in the chiller. Does this never cause...

I am thinking about getting an AC (Split Air) in the not so near future. Now I know that I can set such a device to a certain temperature. Let's say 80 degrees. It will work, work, work, till it is 80 degrees and then slow down or go on stand bye (maybe I do not use the correct terms. So...

I realize that this is a somewhat stupid question. But I'm still going to ask it. If you grow in your house or shed, and your filter is broken (or if you don't use one), how far from the building can you still smell the smell? I also realize that this has to do with the wind direction, wind...

On another forum there is a discussion going on for how long you can work with the same res/nutes. Some say just a few days. Others claim they run it for a month. Of course it is depending on how large your reservoir is. But for discussions sake let's say it is huge. For how long do you guys...

There are always discussions going on about root rot and low/high temperatures. Some people are convinced that you have to keep the temperature of your reservoir below a certain point. For example below 20°C / 68°F. Otherwise your roots will get all messy, brown, stinky. I did some research...

Aquarium pumps and fountain pumps come in versions of 12 volts, 24 volts and 110 volts. Besides the difference in voltage, is there a difference in quality, lifespan, reliability, etc.?

In the very interesting topic of KLX (https://www.rollitup.org/t/the-klx-way.960314/) we discussed the size of a reservoir. He is doing an E&F grow. I am really curious about experiences that members here have. What size do you think your reservoir should be if you want... A) No need for...