Water parameters after Amazonia light cycle - The Planted Tank Forum
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post #1 of 7 (permalink) Old 06-03-2019, 08:45 PM Thread Starter
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I managed to cycle my new ADA Amazonia 60 gallon low tech/ excel tank in just 2.5 weeks by using filter media from another tank in an Oase 600 cannister. It went very smooth with no cloudiness, no algae at all, and no plant death.

I went with the light product with all the bells and whistles( $300 cost if you were wondering) thinking it wouldn't drop my Kh so much. Parameters as of today:

Ph- 6.7. Drop from degassed tap water Ph of 7.7

Nitrates- 25
Phosphates- 3. After adjustment from 0.
Hardness- 4. No drop from tap.
Alkalinity- .3, that's point 3. A drop from 5 for tap water
TDS- 217

Coming from a reef background, I can't quite wrap my head around the near zero alkalinity. Experienced aquarists, tell me again that's it's okay at .3( point 3) dKh and don't worry about it regarding plants.

I know I do need to worry about it when acclimating fish and plan on a very slow drip procedure.

And what about the effect of .3 dKh on fish, do I need to worry about my fish species when stocking?
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Last edited by mboley; 06-22-2019 at 11:47 AM. Reason: Improvement
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post #2 of 7 (permalink) Old 06-03-2019, 09:25 PM
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You did a great job on hardscape and plants. Looks very natural.


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post #3 of 7 (permalink) Old 07-02-2019, 09:08 PM
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Unrelated word of warning - I think amazonia soaks up phosphate so you will find yourself constantly dumping more in to achieve a certain threshold. As long as it hovers around 1.0 and you do6nt have a ton of green spot algae this is ok.
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post #4 of 7 (permalink) Old 07-02-2019, 10:19 PM
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Unrelated word of warning - I think amazonia soaks up phosphate so you will find yourself constantly dumping more in to achieve a certain threshold. As long as it hovers around 1.0 and you do6nt have a ton of green spot algae this is ok.
Interestingly, this approach is never done in Asia, and we don't get green spot either.

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post #5 of 7 (permalink) Old 07-07-2019, 04:47 PM Thread Starter
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Unrelated word of warning - I think amazonia soaks up phosphate so you will find yourself constantly dumping more in to achieve a certain threshold. As long as it hovers around 1.0 and you do6nt have a ton of green spot algae this is ok.
Interestingly, this approach is never done in Asia, and we don't get green spot either.
Thanks for the responses on phosphates. I am indeed dumping in phosphates to keep levels anywhere above 1.
Recently, after seven weeks, there is green spot algae developing.

Dennis Wong, can you elaborate on your response please? Are you saying I shouldn't worry about the low phosphates and shouldn't be adding any?

On my initial question on low alkalinity, more research told me don't worry about it, so I'm not. Should I not be concerned with low phosphates either?
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post #6 of 7 (permalink) Old 07-08-2019, 04:12 AM
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Thanks for the responses on phosphates. I am indeed dumping in phosphates to keep levels anywhere above 1.
Recently, after seven weeks, there is green spot algae developing.

Dennis Wong, can you elaborate on your response please? Are you saying I shouldn't worry about the low phosphates and shouldn't be adding any?

On my initial question on low alkalinity, more research told me don't worry about it, so I'm not. Should I not be concerned with low phosphates either?
Yup, exactly that. If you are already dosing phopshates regularly, there is absolutely no need to get a position reading on test kits in the water column - rooted plants can get it from the soil just fine. This is consistent across 100s of aquasoil tanks that I've seen across 3 continents.There are many other reasons related to spot/dust algae that has nothing to do with adjusting phosphate levels. The nutrient angle obsession towards algae is really limited to forums such as these.

Regards, Dennis
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post #7 of 7 (permalink) Old 07-08-2019, 04:39 AM
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Thanks for the responses on phosphates. I am indeed dumping in phosphates to keep levels anywhere above 1.
Recently, after seven weeks, there is green spot algae developing.
Don't try to outcompete your substrate by adding more phosphate. GSA being reduced by adding more phosphate is an unproven myth.
Most algae can be inhibited by reducing organics and waste with good vacuuming and extra water changes. Good Husbandry > Dumping More Ferts. First try to grow healthy plants and keep a balanced stable tank. If you manage to do that the plants themselves will inhibit the algae problem for you.


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