+1 on the background!Looks good. Two suggestions. A piece of cheap black or color of choice poster board makes and easy background to hide wires and the filter housing. Two, that seems like a very large filter for a betta tank. Bettas prefer slow moving water so just make sure there is not a strong current. His big fins take a lot of energy to keep him going so a strong current can be exhausting.
I put the same light grid on the bottom of my 125 so I could tie down 4 large pieces of driftwood.nicely done Romnen. Looks great. I love that texture to the rock. Kinda jelly to be honest
What / why did you throw that white grid on the bottom?
Boiling and soaking would be best. The light grid will give more of an instant satisfaction (although it could also release tannins to discolor water for a while).i see, does this actually work in place of soaking?