Hydroponics Tuesday

Emptiness in the Grow Room
6/24/2008 7:43:18 AM

Since we've recently concluded the CO2Boost Study, there is a remarkable emptiness in the grow room.  We've in the process of preparing for our next round of experiments.  However, in the meantime, things look pretty bleak:

Hydro-2008-06-24c.jpg

All three eggplants have been taken down to make room for new experiments.  One important thing to know... Some breeds of eggplant have thorns!  Black Beauty eggplant thorns are very unpleasant.  They are very tiny, hard to see, and very sharp.  You don't notice until they get you in the fingers.  They are surprisingly difficult to remove.  I highly recommend gloves.

It's surprising how much the eggplants weighed.  They were really quite large.  It took longer than I'd care to admit taking them down.  Also, I will confess that I didn't save the 6" net pots for reuse.  They were so embedded in the root system that extraction just wasn't practical.  The root system actually had to be "torn apart" just to remove the eggplants from the aeroponic units.  I felt bad taking down perfectly good plants; but sacrifices much be made...

On a lighter note, our MegaGarden provides something much more attractive for photos...

Hydro-2008-06-24a.jpg

The strawberries are continuing to thrive. No complaints there.  We've removed a few of the new sprouts, as they've been moved to new homes.  In the left-hand corner you can see a herd of little lettuce sprouts.  The lettuce sprouts are about a week old, and they look quite happy and healthy.

As a followup to our earlier post... We've started testing STG (Sure To Grow). Our first-round test is very basic... We planted three types of plants (cantelope, basil, and tomato) to see how they germinated.  Thus far, it all looks like a success.  I'm much more impressed with this second generation product than the original Sure To Grow.  This new generation is more "dense".  It holds water more readily and is less likely to "float away" like the earlier generation.  We'll probably start trying some one-on-one comparisons with rockwool once we have some more room in the MegaGarden.

Hydro-2008-06-24b.jpg

Everything looks really happy in it.  I'm pleased.  We'll post more in-depth opinions as we proceed further. 

Posted By Red Icculus, Tuesday, June 24, 2008 7:01:37 PM
How are you not getting algae with your STG medium? I have crazy algae problems when I use it to start seeds with nutrients.
Posted By Ben (Hydroponics Tuesday), Tuesday, June 24, 2008 10:41:54 PM
I had a similar experience with the original STG that I tried from the original samples. At the moment, I don't have any good reason for the lack of algae except that it's only week #1. Everything will grow algae given long enough. Typically, items grown in rockwool will start to develop slight algae, but most plants will be moved into hydroton before it develops into anything troublesome. I'd expect that the larger STG media would be susceptible to algae as it doesn't block light as much as hydroton or rockwool. We'll watch and wait for a resolution.

How many weeks old is your algae covered sample?
Posted By Red Icculus, Wednesday, June 25, 2008 5:54:59 AM
Sounds logical.

My best guess is that the algae covered STG is about 2 weeks old. It is also the older medium in the picture.
Posted By Max Parker, Sunday, June 29, 2008 1:57:48 PM
I really enjoyed the experiment Ben. It must be odd not having the eggplants in there. Any idea on what you might do next?