Our 75 gallon tank has been setup for about a year, have various (15 or so total) small fish such as neon tetras, a pleco, and 3 Bala Sharks. The wife recently added some new fish (without keeping them quarantined for a time, I was not happy) to replace some that had been eaten (by the sharks maybe?), within a couple days some of our original fish began to die. I ran some water tests, amonia was zero, pH was 7, nitrite was zero, nitrate was very high (80 or higher on the color chart). In the last couple days I've cleaned the Eheim 2217, did a tank cleaning with 50% water change, put my external Whisper filter back into use with new filters and charcoal, and retested today, again all levels are good except for nitrates, my efforts seemed to have no effect as the reading was the same as 2 days ago. How can I get the nitrate levels back down? Should I do another water change?
I just tested the water from my well just to see the levels and I got a reading of 20ppm, the test kit (from aquarium pharmaceuticals) recommends using their tap water filter to remove nitrates from the new water when doing a water change. I guess this makes sense as the fresh water I'm putting in the tank during a change is just adding more nitrate to the tankwater.
I just tested the water from my well just to see the levels and I got a reading of 20ppm, the test kit (from aquarium pharmaceuticals) recommends using their tap water filter to remove nitrates from the new water when doing a water change. I guess this makes sense as the fresh water I'm putting in the tank during a change is just adding more nitrate to the tankwater.
