Purple firefish behavior

[gsw0716]

I've had a purple firefish goby in my 15 gallon for about a month now. Everyday, he's been active, swimming around and eating well, yesterday included. I woke up this morning and noticed he's not swimming around like he normally does. I came home and he still wasn't swimming, fearing the worst, I lifted my large rock that he likes to hide under and he was there alive, but just hovering, I dropped some food into the tank and he would usually tear it up, but this time he just stayed in the same place, ignoring it. I just find it odd that just yesterday he was eating like a pig and swimming around.

 

[smitten with ocean life]

@Jay Hemdal ?

 

[Mr. Mojo Rising]

What other fish are in the tank? Have you tested your parameters recently?

Firefish IME is a timid fish that hides a lot. And when its out, it doesn't go far from the home cave, and will hide when people come near the tank.

 

[Jay Hemdal Verified Community Expert]

I've had a purple firefish goby in my 15 gallon for about a month now. Everyday, he's been active, swimming around and eating well, yesterday included. I woke up this morning and noticed he's not swimming around like he normally does. I came home and he still wasn't swimming, fearing the worst, I lifted my large rock that he likes to hide under and he was there alive, but just hovering, I dropped some food into the tank and he would usually tear it up, but this time he just stayed in the same place, ignoring it. I just find it odd that just yesterday he was eating like a pig and swimming around.

Sudden onset of lethargy and not eating can be very serious.

More details are needed to try and diagnose this:

https://www.reef2reef.com/threads/s...sease-treatment-and-diagnosis-section.775547/