After discussing, David and I chose to let the first seeds remaining in place and to add addition seeds. We decided to do this in order to see if any of the new seeds, or old, begin to grow just as our lone seed we have. We are still unsure to why we only have had one successful plant so far. We noticed that the nutrients from our solution had settled to the bottom of our can and I suggested making a new mixture. We mixed enough for two gallons and the pH was neutral (7). I hope to monitor the pH and try to get it a little lower.
These are pictures of our system and the one growing plant:
