Wow. I went out and bought one prior to you posting this. Looks like my rez is about the same size as your's. Looking at your pic I'm wondering if I need to go by a pump with more outlets. Is there that big difference to the plant with 1 vs 4? I mean creating a theraputic jet spa for your plants looks fantasic. LOL. But I don't think I'll be spending a lot of time looking at it. =)