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Re: Rotala Macrandra

>>225 gallons, 2x160watt vho on one timer set 09:30 to 17:30. 2x160 + 1x120
watt vho set 11:30 to 21:30. CO2 set to cut at PH 6.7 tank temperature is 76
to 78 degrees based on time of day. Substrate= 1/2 inch bottom layer of
Flourite. 3 inches of vermiculite mixed with fullers earth that was wetted
in a 50/50 solution of water and Seachem Flourish. Another 3/4 inch layer on
top of flourite and onyx sand.<<

Interesting substrate. Vermiculite hasn't been discussed here for a long
time. By Fullers Earth do you mean Schultz/profile, or something else? The
main benefit of vermiculite is increased Cation Exchange Capacity and
surface area. Did you force the air out of the vermiculite to keep it from
floating, or does soaking it accomplish this?

Robert Paul Hudson
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CO2 systems that work