Glass half empty kinda guy? Its your first time growing at all, you have 24 plants in hydro, and the only critique I can give is that you could benefit from more light soon. Sound a little better that way? I mean it, that is the only thing I think you need to do, everything else looks spot on. Ok maybe a few more fans would be nice too but thats really it, I promise. If/when you are ready for more lights there are some better options we can discuss but what you have will work fine for now. The more you grow the more you will appreciate the constructive criticism, I have been growing for over 10 years and every time someone points out something I could do differently or better, I get excited by the possibility of improving the quality of my medicine.