I did a 50% water change today then added a bit of melafix since I've had some bacterial issues in the tank lately. Now some of my Malaysian trumpets are making for the water surface. I'm assuming this is from the melafix, do you think the snails will survive? I have quite a lot of them and only the largest snails seem bothered.
Keeping the fish healthy is my main concern and I can always replace the snails but I'd rather not have a large die off to foul the water.