Thanks for the comments guys!
I started dosing Lugol's Solution about 10 days ago. I've just been dosing one drop twice per week, so I've only done 3 drops so far. There are only about 75 gallons in the system right now. So this is 67% of the recommended dose. Iodine test kits are so inaccurate they are nearly useless, so I won't be testing for it, but I will watch my corals closely since overdosing should be easy to see.
More pics...
My Squamosa has been growing like mad. It is only about 2 1/2" from tip to tip now, but has put over 1/4" on the shell in the last 3 months. This is my first clam, but that seems like pretty good growth, no?
I was trying to take a pic of the Meteor Shower Cyphastrea, but the true Perc got in the pic, and I thought it looked perty. Too bad it's grainy.
Some new SPS frags. They all came to me 1-2 weeks ago almost entirely browned out, but are starting to show some exciting colors poking through (tough to see in the pic).

Coral Master's blue polyped pink birdnest and rainbow Stylo, an ORA green polyped pink birdnest, and a pink Mille. Oh, the green polyped birdnest fell on my Lobo and burned a branch off. Grr. I need to trim it off.
Here are a couple more SPS frags that are unIDed so far. I'm told they are different which I think is probably right, but they are very close. The smaller one seems to have green corallites, where the bigger one has purple corallites. Both have brown polyps right now. I'm hoping they will color up into something perty.
Here are some sequence shots of my Symphyllia's feeder tentacles:
