Changing substrate in a 2 months old tank - The Planted Tank Forum
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post #1 of 2 (permalink) Old 05-28-2018, 03:04 PM Thread Starter
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Question Changing substrate in a 2 months old tank

Hello to all on this forum

I have a Fluval Flex (15gallon? = 57L). When it started to cycle, I used Fondovivo and white gravel. Now I have 13 shrimps and Tylomelania sp. orange, who just gave birth to a baby. I planted Eleocharis sp. mini in the gravel, but Tylomelania threw it out (almost all). I am going to move her to another tank when it's going to be cycled. But in this tank, I was thinking about making a little different setup; abitmore than a half soil and the rest white gravel I use now. I would plant Eleocharis again into the soil, and rest of the plants too into soil. The gravel would be plants-free.

What is the procedure I would have to do?

I imagine it's something like that;

-take out like half of water
-net the shrimps and put them into a bucket of aquarium water
-pull out plants and put them into a bucket of aquarium water
-take out the rest of water
-take out the bottom and wash the sand in aquarium water.

But what then? If I put soil in, will it change parameters drastically? Will it raise the ammonia high?
Am I allowed to put fish back in as soon as the filter cleans the water a little bit, or should they be out for a few days?

I hope you understand what I mean thank you for answers in advance!
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post #2 of 2 (permalink) Old 06-03-2018, 01:09 PM
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Then you will need to recycle the tank.

The soil that you want to use is caped dirt? If so, it will raise the ammonia, but will cycle faster.

Your filter already have some good bacteria in.

And if you keep fondo vivo, that will help because it already bring some good bacterias in it. I use it a lot of it here in Brazil.

Last, but not least, you can use some biological accelerator (microbelift special blend, sera bio nitrivec, prodac nitridac, seachem stability, or other).

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fluval flex, replacing the substrate, soil

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