Water level and beginner question.
This forum is very useful for me. I dont know much about gardening and didnt know anything about Hydroponics until I had to pick an experiments for Biology project.
My experiment is to compare two of the same plants but one grown in a Hydroponic system and the other one grow in the regular soil media with proper care and watering.
My first question: After I construct my Hydroponic apparatus and pour in my nutrient solution that will be aerated by a fish airpump, how high should I maintain the solution level?
I will be buying tomato plants that are young and wash of the soil and place them in rockwool chopped media in a messed pot. If the roots of the bought plant are large enough that they extend outside the messed pot, how much of the root much be submerged in the solution. If the roots aren't long enough to extend outside the messed pot, should I have my water level so it makes contact with the rockwool or high enough that the solution makes contact with the root itself? I hope i made that clear. Can anyone please clear up the solution level or different root situation.
2. I am planning on using rockwool but does anyone have any good alternatives? going to use CHOPPED rockwool
3. I am going to use tomato plants as of now. I don't know if this is a good choice. I would like suggestions to a plant that is easy to grow, has quick growth, and stuff. Thinking in terms for a science project.
^^ I am following those instructions, does anyone want to add anything else?
5. I will obviously need to aerate my solution, is too many bubbles bad? If i had a large airstone for like 5 gallon container?
6. Okay I need to stay low budget and have to share this with parents that will attend the science fair in our school so I cant use high tech devices like meter and stuff because then the parents will just go: "its easier to do it good old way" If i get water from the tap water, i heard that you will need to let it sit or better if you aerate it before use. So if i do that and pour in my nutrient solution, will i be fine? I am going to change the solution every two weeks.
Please clarify the solution levels and other questions. Dont worry I will come back with more questions to annoy you. Sorry