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In this second part we continue dealing with nitrates, we have already said why we should not fear these compounds, but really although this compound is not really toxic we should give importance to its values, since these are associated with other substances that ARE very toxic for our fish, let's start with the video! Nitrates in the aquarium: Toxicity - part 1: ➡ • Nitrates in the aquarium: Toxicity - part 2: ➡ • Nitrates in the aquarium: Toxicity - part 3: ➡ • Nitrates in the aquarium: Toxicity - part 4: ➡ • Nitrates in the aquarium: Toxicity - part 5: ➡ • Nitrates in the aquarium: Toxicity - part 6: ➡ • Nitrates in the aquarium: Toxicity - part 7: ➡ • Nitrates in the aquarium: Toxicity - part 8: ➡ • Nitrates in the aquarium: Toxicity - part 9: ➡ • Nitrates in the aquarium: Toxicity - part 10: ➡ • Nitrates in the aquarium: Toxicity - part 11: ➡ • Nitrates in the aquarium: Toxicity - part 12: ➡ • Nitrates in the aquarium: Toxicity - part 13: ➡ • Nitrates in the aquarium: Toxicity - part 14: ➡ • Nitrates in the aquarium: Toxicity - part 15: ➡ • Nitrates in the aquarium: Toxicity - part 16: ➡ • Nitrates in the aquarium: Toxicity - part 17: ➡ • Nitrates in the aquarium: Toxicity - part 18: ➡ • Nitrates in the aquarium: Toxicity - part 19: ➡ • Nitrates in the aquarium: Toxicity - part 20: ➡ • Nitrates in the aquarium: Toxicity - part 21: ➡ • Nitrates in the aquarium: Toxicity - part 22: ➡ • Nitrates in the aquarium: Toxicity - part 23: ➡ • Nitrates in the aquarium: Toxicity - part 24: ➡ • Nitrates in the aquarium: Toxicity - part 25: