Tower farm update - Collards greens are growing and growing!

The tower farm is doing great, The collard greens growth burst is accelerating, it has put 4 mores leaves on this week (yes 4!!!), the green onions are going too, and the parsley actually put on a new leaf for the first time in
almost 5 weeks! Also the pepper has a tiny new leaf growing - it seems to have recovered from the rough handling
of the tower a few weeks back
The collard greens are really inexpressively growing in the last 2 weeks, they put out new leaves, and the leaves are getting quite big! see below - click to change the pics at your own pace



For a bit more than a month, the nitrates have reappeared in the system's water at a quite high concentration, so last week, I decided not to add ammonia to the water and track the levels of nitrates in the water. Interestingly, the nitrates have kept increasing, even if I didn't add more ammonia. Also, some ammonia has actually appeared in the system.
Obviously, it didn't appear from nowhere, so the most logical explanation I can think of is that the compost tea (or maybe I should call it compost wash) is bringing some more complex forms of nitrogen that gets converted into ammonia and than nitrate.
The worm compost wash I made this week end is very simple: 4 cups of worm compost, 4 cups of water.