Set the records straight.
Deep tank and deep pockets are not related. Not long hands but higher stool certainly helps.
More flow, definitely yes. I use 3mp40 + 2 smaller tunze.
Try to leave the a big portion at the bottom free, only white sand, for the fishes to swim freely. A joy to watch.
IMHO, a ulns will deliberately deprived the Sps of food. Then you feed them with specially prepared nutrients to get the colors. In short, the colors are mot their colors but obtained by chemicals fed.
A natural system with low nutrient allows the Sps to display its natural colors according to its genes.
A natural system takes time to get it right. Maybe 2 years before one see success.
I have DSB sump and have 2" sand bed on the main. I just love it to be more natural looking.
Different soup from different cook.
Cheers,