When do I start dosing? - The Planted Tank Forum
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post #1 of 2 (permalink) Old 02-04-2017, 03:02 AM Thread Starter
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Question When do I start dosing?

Hi everyone,

I have a newly planted nano with med-high light, fresh aquasoil, and C02 at 1 b/sec. I have planted monte carlo and belem. I see some melting with the newly planted monte carlo, but in my experience that is normal until they get established.

My question is at what point should I start dosing? Right away? Wait until I see growth?
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post #2 of 2 (permalink) Old 02-04-2017, 05:04 AM
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Aquasoil as in ADA Amazonia ? In this case I recommend 50% water changes every day for the first week , every other day for the next week. Aquasoil has a lot of ammonia leaking out in this period.

Aside from that now is the time to calibrate the CO2. Increase it until you get your desired values. A drop checker comes in handy at this time. It is easier to adjust it when you do not have fish in the aquarium.

Now to your question: I have seen it recommended to not start until week 2 but in practice I found that dosing from day 1 does not hurt. The theory is that
  • you have very little plant mass
  • the plants are not adapted to the aquatic environment ( either in-vitro or grown emersed)
  • the plants are not established to your aquarium
  • the plants have nutrients stored and preferentially use them in this transition period
  • the substrate is rich enough to provide everything needed

In practice, different plants have different adaptation time /requirements and every one starts with a different biomass. If you are doing the recommended wc you can even use a full dose as most of it will be removed anyways. Otherwise go to 1/4 or 1/2 a dose depending on plant mass.

Lastly, this is just a suggestion based on random observation and not direct experimental comparisons. All aquariums are different and you get slightly different results with each. There are many ways to grow beautiful plants.

All the best with your new aquarium.

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