It hasn't made it to the states yet, but maybe some of our Asian members can share their experiences with it. As far as I know it's a good alternative to ADA Amazonia that is soil/clay based and has water parameter altering properties (lowers pH). From the user reviews, Gex Soil Substrates are virtually the same as Aquasoil.
Here's a quote from a member who tried it on
AquaticQuotient.
Quote:
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Originally Posted by Valice
Did a comparison of GeX substrate and ADA substrate and this is what I feel.
1) GeX has a very very high iron contain compared with ADA soil. I came up with the conclusion due to a magnetised pincette I have. I crushed the GeX soil and then the ADA soil. More of the soil particles from GeX were sticking to my pincette compared to ADA.
2) GeX texture is more "crispy" and hard to the touch compared to ADA soil. This could again be due to the content of the soil.
3) GeX does not release air bubbles when the tank is filled with water like ADA. This could might mean that the composition and treatment process of the two soils are different. GeX seems to be fired up in the heat more than ADA soil. And the individual soil granuales seems to be more compact compared to ADA.
All these reasons could have caused GeX to not crumble into soil like ADA.
But lets wait for a year of the soil in the tank and a few rescapes before we all come out with a conclusion of whether GeX is better or ADA is better.
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-John N.