Ebb n Flo 6" inch rockwool blocks without hydroton?

Chopsticks33 said:

would it be ok to flood longer since i have 120w air pump in res? there are alot of DO oxygen in water. i know for dwc the root stay in water and grow mad root cuz alot of DO oxygen in water..should i flood for 20-30min?

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Hey bro i hit you back in my thread!
Theres alot of info flowing here and can be a bit
confusing so lets keep it simple and sweet! And
get you pumping out meds

Chopsticks33 said:

they yellowing only happen in flowering. I add tea straight onto the rw and 1cup per gal to res. water temp r about 72-73. my 120w air pump r really hot and blow out hot air to res. my ph stay around 6.0 cuz im using sensi a and b ph perfect from advance nutes. I veg for about 1 month and no problem untill i move it to flowering. usually yellow on 2nd week on.. what u think about the pics?

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It's hard to tell in the pictures since it's all yellowish but the bottom leaves due look like nitro def. I also see what looks like either zinc or mag def. It's hard to tell due to the picture. Does the yellowing start at the bottom leaves first or at the top?

Chopsticks33 said:

would it be ok to flood longer since i have 120w air pump in res? there are alot of DO oxygen in water. i know for dwc the root stay in water and grow mad root cuz alot of DO oxygen in water..should i flood for 20-30min?

Click to expand...

I would have to say no to this. You adding an air pump to your rez doesn't translate to more DO when you feed. Adding air pump to your rez will provide DO to your rez for your bennys. If you want to add DO to water that will get to plants when your feeding is to lower your temp to atleast 68 deg. But I don't think that is you issue. Get better pics and let me know if it was the bottom leaves that yellow first or top. Also if the yellowing started from the inside out or from the tip in.

Side note: when I was using advanced nute 3 part non ph perfect with tap I was getting sulfer def and had to add cal mag to my rez in ucdwc.

Recommendation: Get rid of the coco mat. Try to look at your plants before and after a flood. If they are not reaching for the light but do after a flood than you need to add one more flood. If they are reaching for the light but look less perky after a flood than you need to flood less times. I changed my flood schedule a few times and the flood duration even more depending on how my plants are looking. They are looking great right now other than light bleach due to not realizing how much these purp Buddha stretch and running out of height in my tent. I had two fail attempts in ucdwc and learned so much from it reading up what my issues could be. Thanks to Heis and his tea I have finally been successful in my ucdwc grow and am trying to pay it forward to you and other members. Don't give up and I will help as much as I can.

Disclaimer: This is my first time running ebb and flow and currently a little over 3 weeks in flower.

I used the coco mats "once"... first time i ever had slimme shit in my rez, other sickly problems. H202 is your friend.