So WILDER, I added the treatment, does not seem to be doing anything to help him at all. He is off the bottom, but he spends most of the day inside the pleco's cave with his head peeping out lol. I have seen him come out and have a swim, maybe have a little swim the danios, then he would realise it was too much effort and he would go and hang above the driftwood and nibble at stuff there. He spends a lot of time nibbling and picking at stuff. what can that indicate or is that normal behaviour?