Tracyjs Posted June 12, 2022 Share Posted June 12, 2022 Hello first time poster. So I asked an aquarium group on Facebook about a tank with sick guppy fish. I posted my water parameters and currently that tank is showing 0 nitrates. Ammonia 0, nitrites 0, ph 7.6. It's a heavily planted tank running a sponge filter. The tank has been running for 10 months. So they tell me a planted tank should show nitrates and my cycle has crashed. So I took samples from two other of my tanks and they show 0 and 10ppm nitrates as well. Again all been running 10 months and all planted with added mopani or spiderwood for ph and tannins. I'm running 16 tanks and I started most of them with cleaning a running filter of longer than a year and a half into the tank. Putting food in the tank. Then I discovered fishless feul and added that also when starting a filter. I water change using python hose sifting the substrate, use a mag float to clean the glass as needed and otherwise try not to upset tank Balance to much. So I guess my question is realistically what should my nitrates be? How dangerous are no nitrates and what's the best action now? I added a picture of one of my tanks so you have an idea of my tank setup. Link to comment Share on other sites More sharing options...
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