Hedons said:I currently have the tray flooding 4 times per day, to a depth of 3/4 of the rockwool cube height.
Current solution consists of: (20 gal reservoir)
10 tsp Foxfarm Grow Big
20 tsp fulvic acid
5tsp each of EN/EA.
1 cup Epson Salt
I didn't add the Epson Salt until I noticed that some of the middle and lower leaves were yellowing. It is too soon to see if the salt is helping.
In comparing the grow rate to a friends soil grow, this is going REALLY slow.
Does rockwool permit enough oxygen to get to the roots?
How do my nute levels look? (I got those from a friend with a similar hydro setup).
Stoney Bud said:Hey, let me first say that you've got a great looking setup man! Your ACAD drawing is well done too. I see some good planning in how you set up your grow.
I would drain your reservoir, wash it clean and refill it with fresh nutrient solution. The Epsom salts are more than likely your problem. Try again without them. I've never used the type of nutes you're using. I use General Hydroponics Flora Series 3 part mix. Nothing else is needed. Whenever you start adding more and more parts to a nutrient build, it radically increases your chance of problems. The "KISS" principle works great with hydro. That's how I ended up using the nutes I mentioned. It's fast, it's accurate and it's simple. Nothing to track, no levels to measure.
Good luck man, let us all know what you do and how it works, will ya?
Hedons said:Stoney Bud,
Thanks for the compliments! Maybe next time around I'll solid model the whole setup in Pro-E.
I think I'll take your suggestion for the next grow attempt. I only added the Epsom Salt within the last few days, and that was due to what might be a magnesium deficiency.
Any thoughts on whether rockwool cubes permit enough oxygen to get to the roots?
What ratios are you using the Hydroponics Flora Series 3 part mix in? How many ml per reservoir gallon are you using?
Thanks,
Hedons
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