Yasha goby

[Tchung23]

So I've had my tank for about 4-5 months. Had about 8 fish in my 200xl. About a month ago my fish started dying one at a time. They would lose colour and fins would deteriorate and usually with in a day or 2 they would die. Except for my Yasha goby which looks perfectly healthy and my 2 mandarins (1 started to lose some colour and fins but now seems to be getting it all back and is eating well). Still not sure what wiped out the rest of my fish?? I think Possibly Brook?? But now I'm wondering what I should do next?? Should I wait another few months before adding anything else to the tank?? I've been doing water changes too.

 

[Jay Hemdal]

That does seem to be an odd situation. It may help us to have more background information about your tank. Here is a link to some "helpful hints":

Some Helpful Hints When Posting or Responding to Threads in the Fish Disease Treatment and Diagnosis Section

Aquarium Fish Disease Problem Solving Determining the best course of action for a problem with your aquarium can be a difficult task. Even advanced aquarists will often need to seek the help of others for complicated or unique issues. Our intent here on Reef 2 Reef is to offer expert advice...

www.reef2reef.com

Jay