Ok, I just read my Blue Dwarf Gourami his last rights, a little more than a month after we brought him home. I label it a mysterious death as I cannot find anything wrong with the tank. Plus, he isnâ€™t OFFICIALLY dead yet (Bring out yer dead! Bring out yer dead!!)
We have 2 tanks, a 55g and a 10g. The Gourami lives (lived) in the 10g. The fish was naturally shy from the outset after being constantly bullied by our Zebra Danio who eventually got moved to the 55g tank as it was being set up. Once the Danio moved out he was fine, even though he kept to himself mostly.
Ok, long story longer. I woke up this morning to see the Gourami resting fitfully at the bottom of the tank gasping for air. I did a quick 20% water change and tested the waterâ€¦all was well. Here are the conditions:
Nitrate PPM 40
Nitrite PPM 0-.5
PH Level 7.8
Amonia Level 0
Number Of Fish 3
Temp FÂ° 78
Some of the readings are near the upper end of acceptable but all are still within the acceptable rangeâ€¦right? I read differing opinions in PH and temp. I tried dropping the PH slowly, added a bubble stone but have always had success with the filter providing enough aeration. I also turned the heater off to let the temp drop slowly as colder water carries more O2.
The fish also seems to have lost color and looks like someone who has been deprived of oxygen or been out in the cold too longâ€¦kinda pasty blue. Granted, it is a Blue Gourami, but he had nice blue & red colorations to him before, now he is the pasty blue color, especially around his head and gills.
He went from being a beautiful and productive fish to lying on the bottom moments from making the long swim home. Could it be that I bought an old fish that is dying of old age? He is only about 2â€ long. What else would cause a fish to take a fast turn for the worst?
His tankmates are a medium black angel fish and a common pleco, both of which are doing fine, although a bit saddened by the demise of their friend (â€œIâ€™m Not Dead Yet!!â€)
Anyone have any insight on this? Is the death not as mysterious as I think?