Agent 99?
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No such thing as too much aeration
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Agreed.
The rice hulls provide aeration, but they also tend to break down after a short period and then hold more water. With a 40% mix, I find the roots penetrate without effort and the soil remains friable right up to the next re-potting, or harvest. I like it.
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What’s the percentage of perlite in this mix and how often are you watering? Asking for a friend cough who will never get watering right 
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I water less frequently by roughly 1-2 days always.
The Perlite is roughly 15% of the mix it comes in. That is roughly 20% of the total mix, So that ends up being about 3% of the total mix, right?
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I tried to directly substitute the rice hulls for the perlite in my mix and it failed big-time. You need more, up to 35%-40% aeration instead of 30%. And with that much you need to water more often.
IMO rice hulls aren’t quite like perlite. They’re heavier, so your containers are heavier. A bale of dry PBH is 50 pounds, perlite is like 10. Also they do become wet and hold water unlike perlite.
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I’ve been using lava rock (scorria) for my aeration at about 30% way heavier than perlite. Pumice is preferred, but expensive here for some reason. I use the rice hulls as an amendment at about 10% and mulch layer. This is for a large, no-till bed so the extra weight is not really an issue.
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Just made up a batch of soil this morning. I will be transplanting the SFV OG’s sometime this weekend.
Want to go and get more containers.
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what size are you going up to? I think part of the deal with rice hulls is that you’re not just replacing perlite for aeration, you’re replacing part of the rest of your mix too, it’s aeration and a growing medium too.
I don’t see pumice or lava rock around on the east coast, I guess we’re too far from any volcanos.
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They sell lava rock at most lowes or landscaping companies.
https://m.lowes.com/pd/GRO-WELL-0-5-cu-ft-Lava-Rock/1000142723
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I am going up to the 12" container again (you know, Storm Trooper Styleee). Those hold just under 4 gallons, and these are around 1 gallon.
I do not expect them to get root bound, but we’ll go with these in case they do.
Everything seems to move much slower under ground with this soil I use 1/2 the water when I water, and I water much less frequently. The males I just culled looked perfect and were no where near root bound after 1 week into flip. I love this soil.
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Available within a 15 minute drive of me at Lowes.
@ReikoX These are for a grill. Are they the same thing? Charcoal flavored buds 
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No. They are landscaping rocks. The ones for the grill, I would stay away from.
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I doubt I will ever need them, but I figured I would try to locate them.
I’ll check around the local store some more.
Maybe it is a southwest thing. Zero-scaping i.e. (no plants in the yard) is popular here in the desert.
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Ouch, at $4 a quart?
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Oh nonsense, its a full quart and a half 
99
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There is bulk too.
This is $15
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