Citron Goby

SaltyMomma

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Help!
My citron Goby has been doing great but suddenly over last night he wouldn’t eat and was laying in the sand, then this morning he’s doing this. We tested nitrates/nitrites and levels are fine. All other fish are doing great. Last fish we added was a tang 1 week ago. He has no visible signs of anything. We inherited him so we’re not sure how old he is.



20250720_114844_19B49E01-7370-49C4-8547-CDA820C51C60.png
 
He looks fine to me from here. I have 6 or 8 of them in various colors. I can't tell how long they live but I guess about 5 or 6 years. They eat tiny foods and I only feed seafoods like LRS food, live worms and frozen clams. They even spawn.











 
I can't see the video. The picture shows their normal posture. If the video shows sideways swimming or laying on its side - or a faster respiratory rate, etc - there may be a disease brought into your tank by your yellow tang last week.
 
Help!
My citron Goby has been doing great but suddenly over last night he wouldn’t eat and was laying in the sand, then this morning he’s doing this. We tested nitrates/nitrites and levels are fine. All other fish are doing great. Last fish we added was a tang 1 week ago. He has no visible signs of anything. We inherited him so we’re not sure how old he is.



20250720_114844_19B49E01-7370-49C4-8547-CDA820C51C60.png
Fish is breathing a little heavy and seems a little thin. Is tang going near it or intimidating it?
 
I can't see the video. The picture shows their normal posture. If the video shows sideways swimming or laying on its side - or a faster respiratory rate, etc - there may be a disease brought into your tank by your yellow tang last week.
The tang is a tomini and was quarantined for a month before introduced
 
The person we bought it from quaruntined him for a month I believe its with copper and a mixture of something.
 
Here's the Tomini's qt proccess:

My QT consists of a 1hr dip in ruby reef kick ick, prazipro and 1 more thing that I can’t remember right now. I slow drip them with copper from my system n adjust them to the temp that way as well. Then they go into our system n that has copper at 225 n a UV sterilizer that runs from 8pm to 8am
 
Can you give us (we work as a team) more information? It's really important to try to figure out what exactly you used - and didn't use.

Your system, I assume is a FOWLR type system with no inverts. It is not a good idea to treat with copper continuously. Copper can affect various organs and the immune system as well. Its ok for a month, etc - Please try to figure out what was done - and then let us know..

Can you upload a video of your fish with YouTube?
What makes you think an internal parasite is active in your fish?
 
Here's the Tomini's qt proccess:

My QT consists of a 1hr dip in ruby reef kick ick, prazipro and 1 more thing that I can’t remember right now.
Not a good idea - you should know what you're QT'ing in. And - A dip with these things is unlikely to do anything but cause problems (stress) - and medication side-effects.
I slow drip them with copper from my system n adjust them to the temp that way as well.
Fish can usually be relatively quickly added with copper. at therapeutic levels
Then they go into our system n that has copper at 225 n a UV sterilizer that runs from 8pm to 8am
I think I already answered this one - I would not run a system with copper continuously - but - I. may be misunderstanding
 
Sorry this was the person we bought it from, he’s on vacation but gave me info on what he does to QT his fish.
 
Our tank:

Reef tank - 48 gal

Fish:
Clownfish 1
Clownfish 2
Flame angel
Citron clown Goby
Azure damsel
Splendid dottyback
Tomini Tang

Tiger conch
Arrow crab
Emerald crabs
Nasariua snails
Blue leg hermits
 
Hey everyone—
Looks like after further watching the Tang is getting sneaky and tail whipping the goby under the rock 🫠
 
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