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Loss of color

Posted: Sat Feb 12, 2011 4:14 pm
by oliver
I have an Irrubesco that has recently had a change in behavior and color. I have had this fish for about a month and a half now. I originally bought 2 of them (both femles), but took one back because of severe aggression. I kept the one what was less aggressive. When I got her she seemed healthy, color was good, good appetite, normal behavior.
About two weeks ago I got 3 gobies to put in with her (fresh water bumblebees). Since then she is spending most of her time surfing the glass at the back of the tank in a spot where there are no plants. She has also lost her color, although it does seem to come back a little when she feeds, but turns very light again when she goes back to surfing the glass. She also has a decreased appetite and won't feed directly from the eye dropper anymore(she used to see it, and immedietly come up and get the food inside). She will eat a little bit, but doesn't have the appetite she used to. She doesn't have that round belly that she used to, it doesn't seem sunken, but she does look thin. She used to always be "hunting" for something (snails), but is either hiding or surfing the glass now. She used to come to the front of the tank when I would come into the room, but no longer does.
I do around a 40-50 percent water change each week. Ammonia 0, Nitrites 0, Nitrates between 10 and 20, ph 7.2, temp is 78 degrees. The tank is about 2 or 3 years old. There is also a Bristle nose catfish and 3 Amano shrimp in the tank (29 gallon long).Do you think this is a possible illness, or a stress reaction?

Re: Loss of color

Posted: Sat Feb 12, 2011 4:43 pm
by purplecandle
Are you saying that this behavior started at the same time you introduced the gobies? If so, Gobies can be territorial and they fight and defend territory. Since the gobies are there, your puffer may have less territory and thus may be stressed out. Also, those gobies would probably thrive better in brackish water. Yes, they can live in FW, but they thrive in Brackish water.

Re: Loss of color

Posted: Sat Feb 12, 2011 5:55 pm
by oliver
Yes, it did seem to start around the same time that I got the gobies. The person at the LFS said that these are the freshwater gobies (Brachygobius xanthozona). The store is very large and specializes in freshwater fish only and they seem very knowledgeable. The gobies are doing great, eating well, bright color. I haven't seen them showing any aggresion towards the puffer.