
So, it’s up to you to kick-start the nitrogen cycle. And without it, toxic ammonia and nitrites build up, causing serious harm to your fish… There aren’t any beneficial bacteria in a brand new aquarium. Remember… Nitr ites are highly toxic to your fish while nitr ates are not harmful in small amounts. Important: With just a single letter separating nitr ites and nitr ates, it’s easy to confuse the two. Stage 3 A second type of beneficial bacteria eat the nitrites and convert them to nitrates, which are harmless in small amounts and are removed from your aquarium each time you perform a water change. Stage 2 Beneficial bacteria eat the ammonia and release nitrites, yet another toxic chemical. Stage 1 Waste such as pee, poop and uneaten fish food break down, releasing ammonia, a toxic chemical, into the water. If you are new to the hobby, it’s worth reading because an effective nitrogen cycle is perhaps one of the most important parts of a healthy tank.įor the rest of you, here’s a quick recap of the nitrogen cycle in action… I cover the nitrogen cycle in much greater detail here. The purpose of a fish-in cycle is to kick-start the nitrogen cycle, an invisible three-stage process where beneficial (good) bacteria establish themselves in your filter, keeping your fish safe from ammonia.

Performing fish-in cycling with water changes.

Step 3: Test, test, test, and test again.Performing a fish-in cycle with Seachem Prime.How do you perform a successful fish-in cycle?.Essential products to perform a fish-in cycle.The secret to successfully cycling with fish in your tank.
