Oxygen dissolves pretty easily in water; if there's a deficiency, just dropping in an airstone or increasing agitation in some way would solve the problem very quickly. I can't help but think there is something else going on in that tank. Other fish okay now?
With a name like "chemiclean" I am predisposed not to trust that stuff , but knowing nothing about it I did a quick google search. Most links were a bit vague as to what it is and how it works. One source claims that it is Erythromycin antibiotic. Is that a problem for puffers?
Nothing worse than losing a fish in mysterious fashion, or as a result of a user error; good luck with the last two puffers.
With a name like "chemiclean" I am predisposed not to trust that stuff , but knowing nothing about it I did a quick google search. Most links were a bit vague as to what it is and how it works. One source claims that it is Erythromycin antibiotic. Is that a problem for puffers?
Nothing worse than losing a fish in mysterious fashion, or as a result of a user error; good luck with the last two puffers.