Everyone here shared great feedback. Your tank looks wonderful and Alex is absolutely marvelous! How's he doing this evening?
Are using water conditioner?
I agree with adding more plants. You may consider adding a Catappa leaf and/or float it at the top for cover. I too recommend root tabs. You know, there's a different liquid fert called Seachem Flourish Advance. My LFStores don't have 'em in stock. A small bottle can be found online. It has so many good reviews (Of course, it depends on the plant and results vary.) So far, so good. I have a Spec V too. Cheers to that!