07-23-2009, 12:41 PM
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Just a thought....but are you sure its not just coloring that hes taking on with maturity? My female Honey(Sunset)has a darker patch of color in that area and has been like that since I bought her, but I also bought her when she was fully grown. Its not as brown, but it is darker, and she is also a bit lighter in color then your guy. I think if hes acting normally and beginning to show signs of aggression, hes just maturing.
The readings are a bit worrisome for your parameters though, a mature tank should have some nitrAte reading(5-10). How long has this tank been established? What kind of test kit are you using?
I'd turn the heater down as well, 82 is quite a bit too high IMO. 78-79 should do just fine, this is what I keep mine at and when the temperature was higher she seemed uncomfortable.
I completely agree on the stoking. 60 liters is around 15 US gallons I think? This is far to small for a Pearl, you'll need to return it or have a much larger tank for it in the near future. I highly advise taking out the betta as well, IME they will attack any Gourami as viciously as they would attack another male and the Gourami will not always fight back as viciously.
With that said, a 15 would be fine for the pair of Honeys(assuming you have a male and female)BUT IME only two Gourami of any species will fight and the male may harass the female to death. If you remove the Pearl and Betta and get your parameters straitened away, I'd add a second female Honey to break up aggression.