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0:58
🔴 IGCSE Biology Essential Concepts for 2026 - Ecology (the nitrogen cycle)
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This comes almost every year in IGCSE Biology (likely to come in 2025) \t•\tNitrogen Cycle 🌍: A crucial natural process where nitrogen circulates among the atmosphere, land, and oceans. \t•\tNitrogen Fixation ⚡️🌱: Conversion of atmospheric nitrogen into ammonium through bacteria in legumes or lightning. \t•\tAmmonium 🧪: The initial product of nitrogen fixation, transformed into nitrites. \t•\tNitrification 🔄: A bacterial process converting ammonium to nitrites and then to nitrates. \t•\tNitr
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Your cycle or balance of the nitrogen cycle is not something you have to worry about when changing water, what you do need to pay attention to is shifting water parameters. For some tanks that aren’t used to large changes or haven’t had one in a while, this may be harmful. This is something you want to ease into. (Not veterinary advice if your fish die it’s on you). #fish #goldfish #aquarium #ranchu
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don’t make this DEADLY fishkeeping mistake… do you have cycling questions? read this: nitrogen cycle is a process of breaking down toxic chemicals that build up naturally. when fish poop, it turns into ammonia. this is highly toxic chemicals that that will kill your fish if left unchecked. this ammonia can be eaten by beneficial bacteria and converted to nitrite, then eaten again and converted into nitrate which is less and less toxic. you must CYCLE your aquarium prior to adding fish, which is
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