According to Steem.Center, I qualify as a dolphin.
I never knew what these terms meant until I found that little wiki.
Red Fish - less than 1 MVESTS
Minnow - 1 - 10MVESTS
Dolphin - (Me!) 10 - 100 MVESTs (approx. 5,000 - 50,000 SP)
Orca - 100 MVESTS or more and less than 1 GVESTS.
Whale - 800M VESTS or more, or around 384K SP