- Joined
- Oct 11, 2014
- Messages
- 14,052
- Reputation
- 1,933
- Reaction score
- 46,177
- Points
- 0
- Currently Smoking
- DAAAAABS
I'm going to have to disagree with everyone saying you have to do all these res changes. There are plenty of journals out there where people grow nice plants and do zero to almost no res changes. All they do is top off with just water or nutes. Granted I don't have personal experience but I have done more than enough reading and there is plenty of evidence out there.
Ok so lets break it down to the science of WHY you need to do rez changes when growing in a DWC or RWDC system. It is all about salts, you see all the nutrients we use have a certain amount of residual salts in them. When you do not change your rez regularly the salts build up and prevent your plants from being able to absorb the nutrients correctly. I have my formal education in Botany and Horticulture so I would like to see anyone who has successfully(and by successfully I mean top quality herb with monster yields, as that is the point with Hydro) grown without doing regular rez changes. Now you can get away with not doing a rez change I am sure, however your plants will NOT reach their full potential plain and simple.
I would also add that there are waaaaaaay more folks with evidence here that doing regular rez changes is the way to go. When you say there is plenty of evidence I would like to see where you are getting your info because it is just flat out wrong. There is one caveat to this, it is if you are using 100% organic and NO synthetic nutrients, which is very hard to do you might be able to get away with not changing your rez regularly. If you use totally organic methods of hydro then you probably could go the whole time without a rez change but as you are a beginner I would not recommend it. And here at AFN we only care about helping you get the most out of your grow, so if you are being fed bad info I would like to see who is doing it and I will break out some science on them if need be. Also as far as the nutrients go, I have never used AN but I have used Canna and they work great. I have seen almost all positive things about AN so I am going to give them a shot. I hope this helps and I hope you change your rez if you decide to go with DWC. Just check out some of our grow journals to see, mine is in my sig. Sending good grow Karma your way