In other words, why are some hydro nutrients better than others for growing cannabis? What kind of hydroponic nutrients need to be avoided when growing marijuana? Do you need expensive nutrients to get good results, or will cheap nutrients get the job done?
Botanicare KIND Hydro Lineup
In order to get the best results growing cannabis in hydroponics, it’s important to give the right ratio of these crucial nutrients so the plant gets what it needs at the right time. For example, if you give too much Nitrogen in the flowering/budding phase, it actually surpresses bud production and reduces your yields even if the plant is completely healthy! You don’t want that!
These hydroponic nutrients systems are not just great as far as cannabis yields and quality, they won’t break the bank either! There are lots of great nutrient systems out there, but the truth is that you don’t need incredibly expensive nutrients to get incredible marijuana!
Nice but not necessary micro-nutrients (contained in most water sources, but if using RO or very soft water you want these in your nutrients to prevent possible deficiencies)
Hydroguard (formally known as Aquashield) – prevents and treats root rot.
General Hydroponics Flora Trio Lineup
Hydroguard (formally known as Aquashield) – prevents and treats root rot. No need for extra Cal-Mag with the Aqua Flakes line as it already comes with plenty!
Ever wondered what makes hydroponic nutrients "good" or "bad" for cannabis? Learn about the different types of ingredients that go into hydroponic nutrients to learn which ones work great for marijuana, and which ones to avoid!
There is still a myth going around that DWC is “difficult”, but nothing could be further from the truth. It is really no more difficult than any other growing method where each has its own quirks and inconveniences. In fact, a DWC system can ultimately be one of the easiest methods to grow cannabis since it requires very little time and maintenance.
Fill your net pots with an inert growing medium with low-water retention such as perlite, clay pellets (hydroton), or lava rocks. For germination, it’s best when to start out your seeds in Rockwool and transfer them over to your DWC after a couple of days.
For this reason, one of the most important tools in your DWC will be a good ppm/EC meter. With this meter, you can keep track of any fluctuations. With some experience, and by monitoring your plants’ nutrient intake, it might be possible to get through an entire grow without having to exchange your reservoir until your final flush. You may just be able to top-off your tank with nutrients to maintain your desired ppm value.
The lack of growing medium in a DWC allows your plants to take advantage of all the available space and nutrients to grow as large as possible.
An absolute classic, Skunk XL is Royal Queen Seeds’ modern version of the legendary Skunk #1. This 50% sativa/indica hybrid has a well-balanced effect that mixes an uplifting head high with a relaxing body stone. She does well in many conditions including hydro, and takes a particular liking to DWC.
When selecting strains to choose for your DWC grow, you may want to opt for plants that have tried and tested success in hydroponic grows.
Note: When your seeds have just germinated and are now sitting in pots in your DWC, the roots will obviously not be long enough yet to reach into your reservoir. Until this happens, you will have to top-water your plants. Some more elaborate DWC setups do top-feeding/top-dripping where water from the reservoir also trickles directly over the seedling’s roots. However, top-feeding will provide a benefit for about two weeks when your plants have just sprouted, which is why many growers forgo this addition in their DWC setup.
Too many fertiliser salts can obstruct nutrient uptake and cause wilting. Use the DiST 4 Pocket Conductivity Tester for accurate readings.
Modern air pumps can be quiet, yet the overall noise from a DWC system from vibrating parts can still be a concern, especially if you want to keep things stealthy and under the radar. Your air pump will likely be the noisiest part in your setup, but there are things you can do to make it even quieter. You could hang the pump instead of putting it on the floor, which can help minimise unwanted vibrations and noises. When you glue on any loose and wiggling parts from your DWC system, such as tubes or whatever else might rattle and shake, this can also make a big difference when it comes to noise levels. For large pumps, you can put these into a noise-isolating chamber as long as you make sure that the pump can still get air to function.
Deep Water Culture is a great method of growing cannabis hydroponically. Learn all about DWC and be rewarded with fast growth and extraordinary yields.