Ok, just to make sure I did the right thing.

My blue hippo started scratching itself on its left side. Closer examination I was able to see tiny white dots, about four of them although she seems to not want me to see her left side (probably due to current).

I purchased a cleaner shrimp and a cleaner wrass to clean the ticks and my wife tells me this morning that both are working on the hippo. I shied away from purchasing a bottle of 'all natural parasite and fungus killer' in favor of a more natural approach... ie no plastic bottle.

Should I take additional steps or let this play itself out? Not sure if any of the other fish have any and since the hippo was my last addition I assume I got it from the LFS with them already aboard.