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About DeeJay

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    Surface Breaker
  1. I was interested to see this video, as he employs a cooling sink which run the liquid straight over the thermocouple. I thought that this would be a better way of cooling, although then you would be running your nutes through this all the time (not necessarily a bad thing). I was surprised that his temps don't go much cooler than 20C. I got my res down to 18C within just over an hour... And this was using the fan in the opposite direction. Mine extracts the cool air through the bigger fins and blows it onto the res, and uses the smaller heatsink to dissipate the heat. I didn't use thermal paste though! I have ordered some, and a 2nd thermocouple to add to my little setup, so will let you know how much more effective it is with a 2nd thermocouple and some cooling paste...
  2. So far so good. Worst case scenario it stops working. Just replace the module and start again. They're very cheap...
  3. Bearing in mind the surface of the thermo-couple gets to these temps. Once you employ the heat sink it dissipates quickly. Don't worry, you won't be blowing -30C onto your nutes! 🤣 Probably closer to around 15C or so... 👌
  4. In case some of you are wondering, there is a real easy way to cool your reservoir down. I found mine was getting up to around ambient temps in the grow room of 24C. Obviously at this temp algae and root rot is a very real possibility. Check out https://www.netram.co.za/3712-tec1-peltier-cool-kit.html?search_query=peltier&results=3 Its called a Peltier Thermo-electric Fan. It works on a thermo-electric module that you only apply 12v to and it gets 70C on the one side and -30C on the other side. Couple it with a heat sink and a fan (see the website) and it can blow cool air onto your nutrients to keep them cold. I bought from these guys on Monday and it was delivered by Wednesday. I installed it last night, and ran the fan into a small length of ducting so that the fan does not fasten directly to my reservoir lid and rust through condensation, and wallah! The nutrient temps went from 23.4C to 18.7C in around an hour! I bought this... https://www.netram.co.za/4377-xh-w1209-temperature-controller.html from the same supplier and hooked it up to control the switching of the fan and cooler and it works a dream! All of this for under R600!! The only other thing you would need to purchase to make this work would be a 100w 12v LED driver. Mine is a 300w as this is what I had on hand. Problem solved!!! Let me know what you think? 🙂
  5. My little girls looking WAY better after the Calmag! Thanx a lot for the help in this respect. I will be getting my Flora series nutes next week, so my next feed will be with the Flora, but I will add a 150ppm mix of Calmag to all my feeds from now on. My garden is beginning to grow nicely and looking real healthy. Will post pics in the next few weeks so you can see the progress...
  6. Hey guys, just a quick note... Calmag arrived today. Mixed up a new batch of feed. Let me just say that when you mix the Calmag with 10l of water you are looking for about a heaped teaspoon to get 150ppm mix. I started by pouring the bag in, and ended up with a 2500ppm mix! 😂 My girls are fed and will wait and see how they adjust to the calmat water and nutes. 🙂
  7. Calmag didn't arrive with the shipment. Hopefully here today. In the meantime have dropped to ph 5.8, and plants all seem okay for the time being. Flushed with Florakleen for 24h and fed them nutes yesterday for the next week. Will add Calmag when it arrives. Flora Bloom finally back in stock end of the week, so should have it for the next feed around Tuesday next week. Nutrient temps seem to hover around room temp at 24C, which is a little high. Have ordered a thermocool fan and temperature controller to blow into the reservoir to cool the nutes. Quite excited to set it up. This is now week 3 since I transplanted into NFT, but only 1 of my plants has a root system in the NFT. The rest are about an inch away, getting splashed, and sending out exploratory roots, but not found the nft film yet. The one that has found the nutes has grown a lot and its main root is about a foot long now! Just a question to those in the know... If these roots start to clog up the drain hole, what do I do? Can I prune the roots or will this kill the plants?? Thanx guys 🙂
  8. @Kgrows I'm eagerly awaiting the Calmag and will do the feed this evening and report back 😉
  9. @Kgrows I have ordered the Flora series a few weeks ago but there was no Bloom in stock so am awaiting delivery of the Bloom before I change over to Flora instead of Nutriplex. If I use the tables that Nutriplex gives me for seedlings I get a ppm of just under 300. Therefore to get to a ppm of 800 I would almost be tripling the recommended dosage?! Is this correct?? I have ordered Calmag and it is out for delivery today. How important is Calmag if using Nutriplex as opposed to using it with Flora? Is it a necessity no matter which nutes you use? 😉
  10. @SkunkPharm Yes, true dat. Thanx
  11. @Dank I have followed the feeding chart for seedlings and had to slightly increase the amounts of feed to get the ppm up a bit. I have now dropped the ph to 5.8 and will wait and see if things improve. PPM is sitting at around 380 at the moment, so I am assuming that feed mix is around about the mark? I filled the reservoir (15l) on the 1st, and from the info I found on the net, it seems like a weekly change is needed. I am thinking to flush with ph'd water for 24h and then fill with fresh nutes and start the next week's feed. If anyone could comment on this schedule? Thanx all 🙂
  12. @Dank This might sound pretty stupid, but how do you up the ppm of a mixture? I am assuming you add more nutrients to get a more concentrated solution? Is this correct? And then to lower the ppm you would dilute the solution by adding ph'd water?
  13. @Dank The nutrients are micro veg and bloom, so i am guessing there are micro elements in the 1st bottle? The roots look fine. They are white, but tiny little pinheads poking through the rockwell on some and a little longer on others. They are getting splashed by the nft running past, so should be okay for watering. I am going to drop the ph to 5.8 and see how they like that. I know it is a matter of find ing the sweet spot. Used to growing in soil, so need to get used to this setup now. How often would you empty the reservoir and flush with ph'd water only? And how long on the flush cycle before emptying and supplying muted water again? Thanx a lot for you help
  14. High there guys and girls... I am a first time hydro grower with a homemade nft system in my wendyhouse. I have a few little girls growing, but am having issues with them, and need some help with diagnosing what is wrong with them please? First of all let me say that I grew these girls from seed in rock wool, and they took forever to get a root system that was long enough to transfer to nft. Eventually I transferred them with only a short root system hoping they would grow towards the nutrient film. So far they are trying, but have not yet reached the nutrients, although they are getting wet by the splashing. They are surviving okay, and look healthy enough, but some of them are showing signs of problems. I will attach pics and hopefully someone can point me in the right direction? I think diagnosis should be fairly simple for an experienced grower, but there is so much information and misinformation on the net that after a lot of searching I have decided to ask you guys instead... Thanking you for your help in advance. Ps: Growing using Nutriplex 3 part system, water is 6.2ph, 24C nutrient solution temperature, ppm is around 320. Pps: Plant 1,2,3 have the same rust coloured leaf issues and drooping. Plant 4 am wondering if this is a male as it looks like it is carrying pollen sacs??
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