Mixed up a new batch of metro/focus/epsom salt food. Seemed to help force something out, the poop was definately brownish this time. It was a lot shorter as well, not the typical strings ive seen. Ill keep on at it then, just costing a lot of saltwater, been doing a 25% water change every 2 days, and alternating between a 50% and 25% each time. Theyre in a 10 gallon. Is it overkill? My badge never reads anything so im fearful it isnt working. Being new I do not really know how fast ammonia builds up in the tank. Also, my mocha has some scratches on his head, easy to see on the white strips. Ive seen the Midnight battling him (happens when im doing water changes or when the mocha steals some food from that he was going after), probably just fighting for dominance still huh. Should I keep doing metro/kana in the water? I don't want him getting another infection. Smart idea or give them a chance off the meds? Are fish immune systems pretty decent? Shouldn't he be slightly resistant to the strain that infected him now? I'm a medical lab tech, so I understand how us humans work, but no idea how fish work.