Yea I was going more for this direction because the rate of growth for one head is defiantly fast for a colony but I’ve found a colony typically spits out one or two heads at a time where as individual polyps theoretically over a longer time frame seem to produce more polyps.
ie take a colony of 5 say it produces two polyps in a month at the end of 2 months you have 9. But a single polyp takes 2 months to double if you frag that colony of 5 at the end of 2 months you have 10. But again, very hypothetical with a lot of variables.
for torches I think it depends, I’ve seen some fat heads split into 3/4 but it could be viewed that if there were another head next to it there would be limited space to expand? Not quite sure though just my $0.02