Very nicely done. I love golden bees, though many people dont as you said.
They stand out more when contrasted against your bee soil. Did you put any additives into the soil before filling up the tank? Was a UGF considered as part of the build? Reason i ask is that many of the shrimp soils buffer as you mentioned but a UGF would help circulate the water through the soil to help with that buffering.
Im going to go branch hunting this week and see if i can stitch together a design like yours. very insprational work here!
"I am Groot", the faithful protector