How is it going
@Bogus Monkey
I have a couple quick questions so I have a better idea of what going on.
What kind of water are you using? RO, tap, well, rain?
What is the temperature of your reservoir water? The reason I ask is because I thought I seen the on set of root rot in your first couple images. This normally occurs when the solution says above 72 degrees or 22. c .
The clumping you mention is normally because by the way the nutrients were mix a solution.
What order do you mix your solution?
Believe it or not this is important, because some nutrient must be mixed in first or you will notice the solution clouding at first then separating from the solution in clumps.
Are you using Silica?
Not mixing this first in your solution normally starts acting funny in the solution.
Last thing is you had a little calcium deficiency in one or two of your images this is normal. If you see it again just add some cal-mag to correct it.
If you like, I will follow along on your grow?
Stay safe, and grow well my friend,
Tok..
Edit: These comments are from the beginning of your journal to now. So some may no longer apply.
Keep up the good work.