Tank size: 120 Gallon
pH: 8.2
ammonia: 0
nitrite: 0
nitrate: 30
kH: N/A
gH: N/A
tank temp: 79F
Fish Symptoms: No noticeable symptoms, fish are dying at a rapid pace Tuesday I lost a Molly, Wednesday I lost two more Mollies and a Tetra, Today I noticed a Cory dead this morning, and just pulled a...