hi all, not sure if I’m being paranoid or if I need to do something ASAP! I picked up a 4-5” tigrinus yesterday. he has been swimming at the back of the aquarium all day and I’ve noticed he is breathing heavy tonight. He is in a quarantine tank being treated with eSHa 2000, water tests are amo-0 nitrite-0 nitrates-20. Do you think I need to change anything or am I worrying over nothing?