Planted the 3rd lot of radishes this afternoon, Scarlet White Tip.  This time I know for sure they are spread above just water.  

I was working outside planting bulbs so did not get a chance to go through my old seeds to see what I have on hand that could be used in this experiment.

I think I know what I have been doing wrong, having the seeds sit in the water is probably growing them so I will have to figure out some way to keep the screen tighter.  The sunflowers in the shredded paper seem to be doing well, that may be another option.  Also will see if the radish in just water do better and if so won't use the hydro solution.

SUNFLOWERS
Today (day 4) I took the cover off of the sunflowers and the seeds seem to be sprouting.  Not all of them but there does seem to be quite a few.  Hopefully there will be more in the days to come.
The seeds are from, at least, last year at this time.  They are from a bag of sunflower seeds that we got to feed the birds.

RADISHES
Harvested the radish greens this evening on the 7th day.  They certainly did a lot better than the first lot. I weighed them and got 123 grams of greens.  Because they are growing on a window screen I pulled them up so there is not just the greens but the tiny roots as well.  You can see that they did grow to be a nice height.  Took a taste and there is a mild radish flavour.  This type does not seem to be quite as strong as the first crop.  It will be interesting to see if Heather finds the same thing.

SWISS CHARD
There were a few sprouts from the Swiss Chard and I harvested them and put them in the same container with the radishes.

The Spinach has not sprouted at all or the few that did sprout have all died.   I think the seeds may have been drowned.

I will be planting another lot of radishes again tomorrow.  Will take a look through my seeds and see what else I may plant.  

I used my hydroponic solution with all of the seeds on the first experiment but I will only be using straight water on the next lot.  The solution may to strong for the seeds.

Took the cover off of the Sparkling White Tip radishes and they are doing very well.  Much better than the first try.  I planted more seeds and you can see that the crop is much denser than the first try.
It seems as if this is a quick and easy to grow micro greens indoors with very little effort.  The biggest problem may be to be able to get bulk seeds over the winter.  Single packs of seeds would not seem to make much economical sense unless you can get them at half price at the end of the season.  May just have to make another buying trip to Home Hardware and get all that they have.
Later in the week I may just get rid of the other crops that have not done well and try something else.

I let the sunflower seeds soak for about 24 hours and spread them over the shredded paper.  Then put a thin, single, layer of shredded paper over them and covered to keep them in the dark for three days.
Not associated with this experiment but also planted some old basil seeds for the hydroponic setup.

I gave up on the sunflowers and threw them out in the garden.  There were only 3 or 4 sprouts and the rest seemed to be quite water logged so that was the end of that.  I am going to try something new and I have not seen on the net.  I am going to try the next lot of sunflowers in shredded newspaper soaked with the hydroponic solution.  
I already had some shredded newspaper so put that in the cleaned out original container and soaked it with the solution.  I spread a little dry shredding over the top to try and get the surface more or less even.  If the paper is still dry tomorrow I will wet it again.
Put some sunfl0wer seeds in a measuring cup to soak for about 24 hours.  Will spread them on the newspaper tomorrow.
The Swiss Chard and Spinach are coming along but I may get rid of the spinach and retry it later.
I am pretty sure the reason the three others did not work out as well is because the seeds got water logged due to the screen sinking a little into the water.

The radishes that were planted were, Cherry Belle.  From the videos I saw days 10 to 12 should be harvest days for radish.  Therefore, I was going to harvest the radishes yesterday but time seemed to run out.  Went to Old Farts for lunch and then to the OLT to see a play in the evening.  I did take the photos for day 10 though and they are below.
It was a simple process of simply cutting the sprouts at just above the level of the screen with a pair of scissors.  I tasted one and it had a very distinctive radish taste but a little milder than the root.  Because these are grown on a screen over water I am sure that, unlike seeds grown in soil or coir, the roots can also be harvested.  In fact I did get some roots as well as the stems and leaves.
After cutting I strained the water put the screen back on but ensured that it was tighter than this experiment, spread two packages of Sparklers White Tip Radish, replaced the water and topped up with some more hydroponic solution.  The two packages of seeds covered much more of the area than the single package from the first attempt.  Covered over and will leave covered for three days and see how these work out.
I bought eight packages of seeds from Home Hardware at 49¢ a pack (1/2 price) because it is the end of the season.  Also these are a different type.

As you can see from the photo the other seeds do not seem to be doing well.  I am thinking of trying the sunflower in shredded paper with the hydroponic water solution.  I have lots of sunflower seeds so that is not a problem.  Still wondering just what to do about any other seeds.  Because it is the end of the growing season getting seeds is a little more difficult but I have seen where I can order bulk seeds on line so that is an option.  I will also go through the seeds I have on hand from previous years and give them a try.

Later Thursday afternoon - I set up another grow light for the greens.  I put two pieces of tinfoil with the shinny side down over the bulb to reflect and hopefully diffuse the rays more evenly over the containers.

Seeing as how I started the project, first day of planting, on Sunday the 15th of September today, 17th of September should actually be day two of the experiment.