Check out my Grow journal at the bottom of this post. I am doing a smaller Hydro Bubbler setup in my dresser.... will be starting another in a small Veg Cab soon using Mini Hydro Bubbler. I had 4 plants, I pulled 2 just the other night but they were growing fine with plenty of room left. My Res. Tote dimensions are 15"w x 19"l x 7"d. I have 2 - Whisper 60-80 Gallon Air Pumps hooked to 2 - 8" Air stones. My Res. Tank is sprayed with glue and wrapped with foil to keep light out. I am using 5 1/2" Pots. You will have to watch your plants a little more closely, especially in flowering. Another BIG factor depends on how big you will let these get. If your concerned about your Res. Tank height I could only assume your plants will not be very tall either. You will need to "top" your Res Tank more often or do what I like to do and Let the plants drink until there is a couple inches left in the Res.. then just dump it out and mix them up a new batch with new Fresh nutes. Some people see this as a hassle however for the more "involved" you can think of it as giving your plants Fresh, Correctly balanced N-P-K, water more often. If you do not "top" your Res. Tank with plain water your N-P-K ratio's can get surprisingly messed up... Plus if your like me, you like spending the time with the kids. All-in-All, you don't need a HUGE Res. Tank for smaller plants however the more room is better. Good Luck, hope this helpsAnyone done a DIY bubbler setup? Thoughts on this? Anyone with experience?