Ok...now that I have a couple SPS frags, I have a few questions. FLOW - I have an older K3 and my return which is a MAG7. Do I need more? I have heard that SPS will grow thicker, shorter the greater the flow. Less flow will amount to skinnier, taller branching. Is this true? GROWTH - Just observing the Green Slimer frag, I have noticed that the tips went from white to green just like the rest of it. Good or bad?