Diagnosis on CBB

Jack_soho · 2026-10-23T12:33:48-0400

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brand new to the tank, saw him at my lfs and was eating like a champ, brought him home and immediately started hunting and checking rock work, are these lymph’s or ich?

exnisstech · 2026-10-23T13:37:34-0400

Looks like lymph but lets get an expert opinion. @Jay Hemdal

Jack_soho · 2026-10-23T17:03:27-0400

exnisstech said:
Looks like lymph but lets get an expert opinion. @Jay Hemdal

appreciate it

exnisstech · 2026-10-23T17:21:09-0400

Jay may be away.. let's try this #fishmedic

W31Olds · 2026-10-23T19:40:03-0400

Unfortunately, this is Marine Ich and will need to be treated in a Hospital Tank with Copperpower or CopperSafe.
What other fish do you have?
@Jay Hemdal
@vetteguy53081

Jay Hemdal · 2026-10-23T19:40:48-0400

Jack_soho said:
brand new to the tank, saw him at my lfs and was eating like a champ, brought him home and immediately started hunting and checking rock work, are these lymph’s or ich?

Looks like ich to me. Lymphocytis lesions are larger, and most often seen on the trailing edge of the fins.

Can you take another shot underwater lights? A video sometimes helps as well.

Jack_soho · 2026-10-23T19:45:41-0400

if it helps at all, i contacted the LFS that i got him from, he said all his tanks are treated with copper and the fish was monitored for 3 weeks so he claims its not likely to be ich

Jack_soho · 2026-10-23T19:48:12-0400

Jay Hemdal · 2026-10-23T19:52:15-0400

Jack_soho said:

I still see early stage ich here. Sorry, hope I’m wrong!

W31Olds · 2026-10-23T19:55:05-0400

I don't disagree your LFS runs Copper, but most do not run Copper at Therapeutic levels. That suppresses Ich but with Fish coming and going it's still likely to exist at some low level.

Jack_soho · 2026-10-23T20:06:08-0400

Appreciate the help, should i monitor him for a couple days?

exnisstech · 2026-10-23T20:07:31-0400

As @W31Olds stated above.
Most LFS run low level copper and lower level salinty. Running tanks that way suppresses disease which can then become active when a fish is placed into normal salinty.
I Introduced velvet buying a fish kept in low levels years ago. I no longer buy fish kept in low level copper and or low salinty. I try to buy fish kept with coral and inverts

larrysaltisfun · 2026-10-23T20:21:57-0400

Even if the LFS is running at therapeutic levels they could be putting brand new fish in there with ICH ….. still leaves the possibility of immediate transfer to an existing fish like your CBB.

I would think that only if they were quarantining for a full 30 days a tank at a time with no additions during that quarantine and did not have shared filtration between those and had no breech in biosecurity would it ever be safe to assume that a fish from LFS was ICH -free.