I think you should have rewards for every power of ten. Here is my suggested list:

• 0 Accounts start as part of the Primordial Ooze
• 1 - 9 is a Carbon Compound
• 10 - 99 is a Protein Strand
• 100 - 999 is a Protozoa
• 1,000 - 9,999 is Algae
• 10,000 - 99,999 is Krill
• 100,000 - 999,999 is Redfish
• 1,000,000 - 9,999,999 is a Minnow
• 10,000,000 - 99,999,999 is a Dolphin
• 100,000,000 - 999,999,999 is an Orca
• 1,000,000,000 - 999,999,999,999 is a Whale
• 1,000,000,000,000 and over is a Kraken.

It looks like new accounts that are too cheep to power up are stuck in red fish category for the first seven months or so. I think it would be great to have a classification during this long trying period.