One,
If they are harmless detrivours, I don't want to get rid of them. Besides, wrasses eat every dang thing that'll fit into their mouths
Had a look at the 72's glass last night and the teeny tiny bugs have really grown over the course of a day. They have noticeable forked tails similar to the bugs we initially pulled out and put into the 5g test tank, so I'm thinking these pinhead sized bugs are babies of the bugs in the photos.
Looked in the 5 gal last night and found one original bug about twice as big as when we put the three of them in there. It was climbing the glass along one corner. Another of the three originals was on the sandbed.
I'm beginning to think these guys are harmless. I could suck up a few of the babies from the 72 and put them into the 5 to see what happens. Will probably do that tomorrow night.