red sea reef mature starter kit

I’m on day 7 of using the Red Sea Reef Mature Starter kit on a 13.5 gallon tank. However, I’d love some input from the pros out there on the mistakes I’ve made already. Images + video attached below of my tank...Hope y'all like my first aquascape! Mistakes: -Dr Tim’s one and only - I poured...

From the ashes of my mistake it is reborn... Since I already had most of the gear… I decided to buy more stuff [of course] and resurrect my nano. Fluval says it’s 2.6g; the measurements say 3.5g, the display is 2.7 and with sand/rock mine comes to 3.1g…. So, yea. Nothing about this tank is...