Ending dwc hydroponic rambutan

I decided it was time to end my dwc rambutan experiment. The result of the this experiment show the possibility if the setup of this system is correct. There were plenty of root branching, but not as much as I was hoping for. I blame my improper dwc setup for the less than spectacular result. I wonder what a proper dwc setup with correct nutrients and lighting would do. I'll might do one much later.

Below is a photo of the rambutan seed from the one of the dwc setup. Nice root branching, but lacking in leaves as compare to the one in the soil container(last photo) that were planted at the same time.

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The temperature inside my small greenhouse average about 7-10 degree cooler than outside temperature, on average this summer so far, with 75-85% humidity. This summer is not as intense as last year of 60+ days of above 100 degree.

DWC Rambutan

Started another batch of 8 seedling on July 5. These set had some root by July 13, I waited until the 15th to put six in a dwc hydroponic system that I built mainly from watching youtube video for ideas. The other two was put in a regular soil container.

Some might ask why such a big hole for the air tubing. I originally wanted to do an aeroponic style system, so I made the hole big enough for the tubing and water pump power cord.

I change my mind and went with a dwc for simplicity. Just air pump and air stone, no cutting pvc or water pump heating the water,it's hot enough here in DFW area.

I need a bigger airstone to give me some more bubble action, I'll get some tomorrow on my way home from work. One day is not going to hurt it, since the root is not touching the water yet.

What nutrients am I putting in the water?

I using Foliage-Pro 9-3-6. If all my other plant are doing ok, why not here too. Instruction says 1 tsp per gallon, I have about 4 gallon of water. I only used 3 tsp.

Did I check the water ph?

No, I did not since I been watering my plant from the garden hose and using this as the source of my water. I will check the ph once I get my meter, since rambutan prefer acidic soil or in this case nutrients.

I welcome any dwc expert out there for suggestion on improving this or any of my mistake.

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The experiment continues

I had 6 seed before the July 5th batch, but they did not produce any root in two week period in the ziplock bag. I though maybe I should try putting them in a container. No luck, they justed rotted.

I have a second batch of seed started in July 11th in a ziplock bag. If any root appears, this batch will be use for my soil mix experiment. Until that time, we'll see.