Too lazy to test the pH at the moment, but it's 6.8 coming straight out of the tap and the albimarginata tank has some IAL extract in it, so I know it's definitely below 6.8. That tank has been running for 3 years or so and is very stable. The female was perfectly fine in that tank, so that makes me think this is a problem specifically with this male, not with the water... Maybe he just swallowed when I tried to strip him and isn't interested in food yet (can you tell I'm trying to be optimistic here? lol) I read that it generally takes them half a day to become interested in food again after releasing fry or swallowing, so we'll see tomorrow I guess. I reeeally hope he doesn't give up on me, he's such a little treasure!