have only used before ADA amazonia sand alone.. my ADA amazonia II bottom soil already turn to mud at the age of 3mths. leaving a thin layer on top that is still in normal grain form. thats why when i always did minor change to the tank. the whole tank will turn cloudy due to the bottom layer of "mud" is stirred up. not sure if its only me or not. but IMO, i rather use lapis sand with base fert. ADA soil to me is simply a tank clouding soil.
my 2 cents.
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