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Tank size:125 gallon (6inch x 20 x 18)
pH: 7.5
th hardness: 80 ppm
nitrite:0 are they suppose to be at 0
nitrate:0
Alkalinty: was between 0 and 80 ppm
tank temp:80 f
Fish Symptoms (include full description including lesion, color, location, fish behavior): Angelfish is sitting up...