Some scales call the lower levels redfish. That scale made no sense to me as "redfish" can be huge. I am glad people started using the term plankton.

Personally, I like to divide the plankton into Algae and Krill. Algae has less than 50 SP and krill is a microscopic bug like creature that has 50 - 499.

I joined SteemIt in 2018 and am 100% powered up and am quite proudly a krill. i suspect I might make minnow in another two to three years.

Two years ago I wrote a post suggesting that they have a name for every power of ten.