Rootbound In 4" Rockwool Flood & Drain?

Originally Posted by dadio161

I disagree with this poster. I grow this way all the time and put out great harvest every time. There is no way that those plants are root bound yet in the pic. No way. If you are worried , you can place those 4" blocks on top of a mat or a 6" block. You do not need perlite or Hydroton on the bottom . I always grow with my blocke right on the table like in the pic.
If you would like to see what I am talking about , please feel free to check out the grows in my Signatures and see for yourself,.

Your grow and homebrewer's threads are where I got all my information for this grow, so I'm glad that you back me up on that disagreement as well

Like I said earlier I'm now leaning more towards the overwatering from the signs I've seen.

Edit: Can you link me to the mat you're talking about? A few people have mentioned mats but all I've ever seen were slabs.

My biggest recommendation is to try a small slab. I have seem them at my grow shop in small sizes. Like 6" x 8 " x 3" high. you can put you block on top of this short slab and really increase your area for more roots. This way you will always have the ability to move your plants around a bit if you need to. I like to move my taller plants to the outside of the table and shorter ones in the middle. Sometimes you need to rotate to keep buds from hitting the light. Gotta do what you can to keep the light as low as possible.

How many times are you flooding per day? If it's more than twice then you're flooding too often. To be honest, it takes my girls a week or so to really get going when they're that size. That being said, your plants look fine and so does that setup. Four inch blocks may be a tad small but I guess that depends on how big you plan on growing them.

I was flooding 3 times per day, but I stopped and now they're flooding once a day. I didn't flood them tonight since they already had plenty of water still, should I switch it to every 2 days?

Here's a picture of my setup now that I added a cover to it. They're still drooping but hopefully that clears up. Is sitting water still a problem if it's covered and my plants aren't sitting in it? With my setup the way it is right now I can't have holes dripping the excess into my res, but I plan to get a new tub and res next water change so I can make it simpler, I kind of over thought my setup.