Slip potting update

Two plants I slip potted two weeks ago grew really vigorously to occupy new space. They are more than 15cm tall now:

 Because of transparent pots I could see roots emerging a week ago. Now they are confidently filling new soil:

Trunks are also getting thicker, they are already covered by something like bark:

One plant in communal nursery have developed something that can be definitely called aerial root:

Last time, putting a digital thermometer inside greenhouse failed because mist covered readings and battery corroded. Now I've ordered in China a thermometer-hygrometer with external probe. It works much better, I can put the probe in desired place

and readings are conveniently visible. See the obvious difference with winter indoor conditions:

I keep fertilizing all plants every 2 weeks.

Slip potting

It's been just 9 days since I moved my 12 plants to a larger nursery and it appears too small already. Edge seedlings touch lid tightly and are injured when I close it.

Roots are sticking out of many cells, so it's time to slip pot them anyway. I'm going to try it on two plants first. I'll use small clear polypropylene glasses. It might also be interesting to see through them. 

I took two largest seedlings and reshuffled others to form 4x2 cells. Something tells me these guys will overgrow their new increased space pretty soon.

I'm not increasing soil volume dramatically and almost not increasing height. Just a little more room for roots and some fresh soil. 

Trees came out of their original pots pretty easily. It's amazing how just 6 weeks ago they were so small that I had to use tiny strips of paper to move them without smashing and now I can pretty much hold them with my fingers!

There's a lot of roots, they are stiff to touch and smell OK, but color is kind of yellow on some parts. Hopefully that's not something like root rot

I'm not really touching roots this time, and I'm mostly keeping old soil where it is. Just removing top layer with pesky green algae, anyway there's no roots to harm there.

One of the cells had two plants. Younger one is something like 2 weeks younger but grows much slower. It's not a big problem so far, I'm keeping it as it is. Look how big brother hugs smaller one:

So here they are, my champions. Hopefully they'll thrive in their personal villas:

I also have personal heating mat for them, and additional height will balance the fact they're in the second row now:

Dew

Look at this beauty I found today:

Plants in the new greenhouse are growing well. Even the one used to be dried 3 weeks ago now has recovered fully. It has shed 4 leaves, but new ones are growing fast and at almost didn't lag behind the others:

Here is the largest seedling so far:

It's stem is turning brown and almost woody:

Thorns or whatever it is on most plants are slowly growing, but it's still unclear what's their purpose:

BTW, putting thermometer-hygrometer permanently in the greenhouse didn't work perfectly. It helped me to balance ventilation vs temperature and humidity in the first day, when I ended up closing almost all vents. But couple days later it was filled with condensate and hygrometer failed, it shows random value now, even if I can read it:

I also have fertilized them today. Here is a full group shot:

Larger greenhouse

Increased nursery lid I made two weeks ago is too small again, seedlings are literally pushing it up:

So I decided to move them to a new home. I purchased a mini greenhouse in Ikea, but it's not wide enough to accommodate the whole nursery. Luckily, I have just 10 out of 12 cells occupied (however total number of plants is 12), so all I need is to relayout cells so they are in 2 rows instead of 3. This way I also get better access to them, because now middle cells are totally hidden by leaves and it's difficult to check and water them.

Ikea greenhouse have its own tray and old tray will not survive reshuffle anyway, but I wanted to have some additional insulation in the bottom to avoid soil being overheated by heating mat. So I took an unused broken set of nursery cells and added a sort of legs made of hot glue:

Also I glued this new set of cells together in desired shape (I really love hot glue):

And put thermometer to a more convenient location:

It's time to reshuffle:

By the way, some roots are already sticking out from drain holes and also above the soil. Probably it's time to slip pot them soon:

First trim! (Just cells for today)

 Voila, new home for ficuses is ready (check out awesome glue gun in background):

New formations

Almost all plants started to develop some strange thorns in leaf nodes. Can these be aerial roots? I intentionally keep them in 100% humidity and warm temperature, but can aerial roots start to grow that early?

Also, it's been two weeks since fertilization, so I fed them again.