Plant cycles?

ergo sum

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Mar 15, 2005
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I have come to think of a new aquarium as a plant cycle. I usually start a new tank with plants. I know some people here are much better at chemistry than I am and many people here are much better at keeping plants than I am.

Still I think the logic of this would be good for many people.

I think the cycle is something like plants followed by diatoms, then plant more plants and maybe some fish followed by green spot algae. Somewhere in there is a fish cycle and if things go well or in error the next step seems to be a red hair algae problem. Sometimes you can do this with the fish living and sometimes you can't. Why is that?

Basically I plant plants. Get diatoms. Do a fish cycle. (not always sucessful) Plant more plants. Get green algae. Plant more plants and hope for no red hair algae.

If all that works I figure the cycle is over.

I don't think this differs much in high light with CO2 or in low light. Some of you I think can balance this all out right from the beginning but I would like to hear how you do this. And I would like to hear a chemical analysis of what actually happens.
 
If you add enough plants from the start, there are no algae issues.
The plants remove the NH4 directly.
There is none or only an insignificant trace amount of NH4 left for the bacteria. Plants also have bacteria on them when you add them.

If there are not much fish or waste in the beginning, the plants will dominate easily.

Adding main fish a week or two later is fine as the plants fill in the tank.

Regards,
Tom Barr
 
Ah, but you presume I know what to add. You ignore the light issues and assume too much plant knowledge.

I do know that can be done but I would like to define it a bit.

Let's say I have 1.5w per gallon.
Let's say I have a 20g tank.
Let's assume I have a gravel substrate.
No CO2 to start.

How should I plant it?
 
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