When we checked our system today we noticed that the water level had dropped about an inch or two so we added more water to the system. It seems like every week we will need to add more water to our system to balance out the level. Some of our plants are growing better than others. The plants closest to the light seem to be doing the best at 4-5″ where the other plants are around 2-3″. We will continue to feed the fish and monitor the system. We checked the pH today and it seemed high but we tested it right after we added more water so we will check it again on Wednesday. The picture below is of our plant growth.
I think it is a great idea to try something out of the box such as using fish to give plants the nutrients they need. Hopefully they areas effective as the nutrient solution. I hope your plants do well, looks like your off to a good start