Most fish from lfs
, if not all, have had exposure to other sick fish from being in the same system. You can assume virtually any fish purchase, especially in groups, will be contaminated. FW
qt is rather simple since most diseases/parasites can be rid through salt additions from 2ppt-5ppt, dewormer, and Formalin/Malachite Green treatments. SW
is much more difficult due to underlying infections, underlying parasitic infestations, and their resistances to specific medications. 20g and 40g tanks suffice for a variety of species (I prefer a Navy blue painted bottom and black painted back/side(s) ). For sw
, meds. to keep on hand are Copper sulfate and/or Cupramine (basically a chelate), Formalin, Nitrofurazone, dewormers (typically fenbendazole and praziquantel)...I feel I'm missing one hmmm. Methylene blue as an old med. often used for fungal infections, but works quite well in sw
for ich, other parasites, and bacterial infections for specie specific such as chromis, damsels, etc. At that point in meds, it comes down to planning medication treatment timeframes throughout the QT monthly process and calculating dosages.