Xz's 3ft High tech + low tech nano experiments - Page 25 - The Planted Tank Forum
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post #361 of 383 (permalink) Old 07-12-2019, 03:53 PM Thread Starter
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update on Hygrophila sp. Chai after a year ish of growth


VS last year August ish


seems to like being in open area, but then most plants do
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post #362 of 383 (permalink) Old 07-12-2019, 04:23 PM
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Tanks look stunning.

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post #363 of 383 (permalink) Old 07-12-2019, 05:59 PM
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Is that a white marsilea?
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post #364 of 383 (permalink) Old 07-12-2019, 08:26 PM
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This tank is using aquasoil?

In the other tank with sand I have topsoil, osmocote below it. Osmocote works better in soils than sand, as ammonia binds to soil, not sand. If you are dependent on substrate feeding for plants, sand is no substitute for soil. (Hence the usage of aquasoils; else everyone would have just saved cost and gone sand + root tabs)
Sorry for the delayed question, but just stumbled across this thread.

Would ammonia also bind to a high CEC substrate like SafeTsorb, or does it need be soil? And do you need to cap the soil or STS to keep the nutrients in, or does it matter?

Thanks
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post #365 of 383 (permalink) Old 07-12-2019, 11:31 PM
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Sorry for the delayed question, but just stumbled across this thread.

Would ammonia also bind to a high CEC substrate like SafeTsorb, or does it need be soil? And do you need to cap the soil or STS to keep the nutrients in, or does it matter?

Thanks
It will bind to the clay w/ high CEC just fine.. Soil just has a higher (assumed) holding capacity than the clay IF the soil is high in humus/organics..
If not .. ie. just sand/silt lower clay..pure clay is better..
at least how I understand it..
This gives you an idea of the process..Just consider it water saturated soil..
Quote:
When ammonia is injected into soil, the initial reaction at the point of release is violent. The ammonia reacts and binds with soil constituents such as organic matter and clays. It reacts with water to form ammonium (NH4+). These reactions help retain ammonia at the injection point. With the high affinity for water, soil moisture is important for limiting the movement of ammonia, but water does not ultimately determine retention in soil. After conversion to ammonium, which is a positively charged ion, it is held on the soil exchange complex and does not move with water. Only after conversion to nitrate (NO3–), via the nitrification process, can it be lost from soil by leaching or denitrification.
Chemical and biological reaction of anhydrous ammonia in soil

(1) NH3 + H2O = NH4+ + OH–
The reaction of ammonia with water (1) causes an initial alkaline pH in the ammonia retention zone (pH can temporarily rise above nine at the point of highest concentration). It is free ammonia (NH3) and not ammonium that can be lost from soil at application and is damaging to microorganisms and plant roots/seedlings. As pH goes above 7.3, the equilibrium between ammonium and ammonia results in increased ammonia (the percentage as ammonia would be 1% at pH 7.3, 10% at pH 8.3, and 50% at pH 9.3).
(2) 2NH4+ + 3O2 = 2NO2– + 2H2O + 4H+
(3) 2NO2– + O2 = 2 NO3–



https://crops.extension.iastate.edu/...plication-soil


Keep in mind there is plenty of ammonia eating bacteria in the soil..
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post #366 of 383 (permalink) Old 07-14-2019, 02:31 AM Thread Starter
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Sorry for the delayed question, but just stumbled across this thread.

Would ammonia also bind to a high CEC substrate like SafeTsorb, or does it need be soil? And do you need to cap the soil or STS to keep the nutrients in, or does it matter?

Thanks
CEC is hardly everything. And providing nutrients isn't the only role of a soil/substrate. SafeTsorb works alright, but its texture is still inferior to soil. And texture matters alot for roots. Even raw soil has a better texture than aquasoils, but the difference is subtle so most folks won't see the differences unless they know what to look for. I think a problem of many of these forums is the reductionist approach to things - nothing trades for actual experimentation and results (and that's why its easy for plenty of folks to wax lyrical about this theory or that, but when you look at their actual tanks and results, not so impressive... )

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post #367 of 383 (permalink) Old 07-14-2019, 04:13 AM
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Originally Posted by Xiaozhuang View Post
CEC is hardly everything. And providing nutrients isn't the only role of a soil/substrate. SafeTsorb works alright, but its texture is still inferior to soil. And texture matters alot for roots. Even raw soil has a better texture than aquasoils, but the difference is subtle so most folks won't see the differences unless they know what to look for. I think a problem of many of these forums is the reductionist approach to things - nothing trades for actual experimentation and results (and that's why its easy for plenty of folks to wax lyrical about this theory or that, but when you look at their actual tanks and results, not so impressive... )
what's wrong with the texture on safe-t-sorb? pore spacing too random?


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post #368 of 383 (permalink) Old 07-23-2019, 03:31 PM Thread Starter
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what's wrong with the texture on safe-t-sorb? pore spacing too random?
It's a bit coarse
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post #369 of 383 (permalink) Old 11-23-2019, 07:14 PM Thread Starter
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Some new plants and side projects:
Eriocaulon cuspidatum


Mini parva, stable after many months



Low tech tank; mostly anubias, java fern


Simple scape



In the last scape pogostemon erectus is growing well at KH 7. So much for rumours that it requires softwater. It simply doesn't do well with heavy water column fertilization in hardwater - root feeding it in high KH water works perfectly fine.

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post #370 of 383 (permalink) Old 02-13-2020, 05:25 PM Thread Starter
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Some updates
Latest farm tank pic. Added Gold tetras, quite pleased with their contrast






Scaped a low tech tank for baby nephew

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post #371 of 383 (permalink) Old 02-13-2020, 08:28 PM
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The colors are stunning! Are you continuing to use APT complete in your farm tank?


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post #372 of 383 (permalink) Old 02-13-2020, 08:40 PM
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The farm tank looks better than the main tank!


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post #373 of 383 (permalink) Old 02-14-2020, 09:56 AM Thread Starter
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The colors are stunning! Are you continuing to use APT complete in your farm tank?


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Yep. only APT complete, and osmocote in soil.

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The farm tank looks better than the main tank!
haha only for plant centric folks... the asians like aquascaping and many don't really care for plant variety all that much (surprisingly). But it has to do with how the hobby has been introduced in one region vs another. Think about the Japanese garden approach - with the top consideration being naturalistic and plants blending with environment. Many folks here don't bother much with exotic or colored plants, there are plant enthusiasts but they make up smaller portion of the market. See how the average Japanese salary man dress vs a marketing executive from France... different archetypes.

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post #374 of 383 (permalink) Old 02-14-2020, 11:30 AM
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unabashedly plant centric here, and you, sir are partly to blame.

(I meant that in a very good way of course)

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post #375 of 383 (permalink) Old 02-14-2020, 02:15 PM
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What is the green plant in the center of the Crypt flamingo?
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