Ed Seeley said:If you're contemplating pencils then I'd look at the Rocket Pencils (Nannostomus eques). I have 13 in my Rio and they are amazing things that hover in the open water at 45 degree angles. In an Iwagumi they'd look amazing IMHO. I'll try and take some pictures later and update my journal to show them off.
Sounds good Ed. Would be interested to see them. Looking online, they look interesting!