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bradac56 · 07-06-2009, 09:03 AM

Vermiculite is just another old school fired clay inert product so all it's adding to your tank is trace iron.

Examples of other inert clay substrates: Eco-Complete, Fluorite, SMS/Turface, SAS, pool filter sand.

Examples of non-inert substrates are AquaSoil and MS.

~

Even AquaSoil and MS runs out of nutrients after awhile so depending on your lighting and C02 you'll need some type of fert regiment.

- Brad

07-06-2009, 09:03 AM	#3 (permalink)
bradac56 Senior Member Join Date: May 2007 Location: Blue Springs, MO Posts: 332 iTrader Ratings: 3 iTrader Positive Rating: 100% Plant Points: 33300	Re: info on lava rock for sub Vermiculite is just another old school fired clay inert product so all it's adding to your tank is trace iron. Examples of other inert clay substrates: Eco-Complete, Fluorite, SMS/Turface, SAS, pool filter sand. Examples of non-inert substrates are AquaSoil and MS. ~ Even AquaSoil and MS runs out of nutrients after awhile so depending on your lighting and C02 you'll need some type of fert regiment. - Brad