I'll probably have to order that unless I can find some at Big Al's. My Petsmart only has Rid Ich.
The female is even more bloated today. She looks about ready to explode!

She's no where near as active as the other one but she does swim a bit and seems to eat some. Mostly I just see her resting near the top of the tank.
Overnight, in about 12 hours, they've nearly cleared that whole patch of algae on one side of the tank! It would have taken a snail days to even FIND the algae...
There is a little left but I'm worried it won't be enough for them so I put a piece of spinach in for them. I tried an algae pellet but L.P. gobbled up the whole thing before they could find it. :

He got no supper after that!
So far he's getting along well with them and just loves the skinny one, Dotcom. Dotcom swims furiously all around the tank and L.P. follows him everywhere with wide-eyed wonder! I even caught Dotcom chasing L.P. and giving him a little nip when he becomes too nosy and pesky.

Last night L.P. and Dotcom slept side by side near the driftwood. The female Oto slept near the top in the back.
Here's a pic of the poor bloated girl (she looks more like a tadpole than a fish) and you can see how well the side of the tank has been cleaned in just a few hours! Another pic of the two Otos beside each other cleaning the heater cord: