Water change while cycling a tank

  • toni-a
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toni-a created the topic: Water change while cycling a tank

Hi all,
I am cycling a 65 gallon tank+ sump using feeder goldfish.
It has been one month since I started.
3 days ago I added a heater to speed things, yesterday water started getting cloudy (a bacterial bloom, a good sign IMHO)
The feeders will be donated back to the LFS and they will end up as feeders :dry:
I am not doing gravel vac nor water changes as to increase the amount of ammonia and speed up cycling, am I doing things right or I should gravel vac and change the water ?
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  • Nina_W
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Nina_W replied the topic: Water change while cycling a tank

wrong forum - moved to water chemistry

more ammonia does not make for a faster cycle, it just makes for a larger bacteria colony (not really necessary, mostly).

I'd be changing water daily to help keep those fish healthy. What good would it be if one of them caught a disease that could then infect the fish you intend to keep in there?
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Rocksor replied the topic: Water change while cycling a tank

A bacterial bloom is a sign that there is a lot of organic waste in the tank. Heterotrophic bacteria is breaking down the organic waste to ammonia. This is not necessarily the bacteria that we are looking for in the aquarium. We want autotrophic bacteria that consume ammonia and nitrites. Heterotrophic bacteria reproduce significantly at a faster pace than autotropic bacteria and will take up the space of autotrophic bacteria and consume the same oxygen.

My advice, gravel vacuum the substrate, and reduce the number organics in the gravel bed.

Without a test kit it will be hard when to do a water change, as generally you do not want the ammonia and nitrite levels to get beyond 4ppm.
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