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Offlinelalala
Psychonaut
Registered: 08/03/03
Posts: 43
Last seen: 3 years, 3 months
Lava Rock vs Perlite/Geolite story
    #1888101 - 09/06/03 11:20 AM (13 years, 10 months ago)

First, the camera of the house is broken, or there would be detailed photos documenting everything. I apologize for the lack thereof. I'm chronicling Rough The Wonderdog's attempts with a different terrarial material, since he can only write in Dog.

Now, on to the important matters!

After researching all the potential water-absorbing materials for a terrarium in my immediate area, my dog, Rough, decided to bypass the perlite (couldn't find grow rocks in town), and instead he went directly to Lowe's and purchased a bag of black lava rock for roughly $3.50.

Rough's first terrarium, on his first grow, approximately midsummer, consisted of a cheap hygrometer/thermometer, 2 inches of sterilized and cleaned lava rock across a sterlite 25 quart blue bin, with a 14 inch airstone in the bottom, and small holes drilled in the top for ventilation. He poured about an inch of room-temp sterilized water in the bin, and fired up the air pump. Rough also purchased a small submersible heater, but ended up not using it as temperatures maintained a steady 78 degrees internally.

Within an hour, the relative humidity in the bin climbed to 93%. Rough thought the hygrometer was off, so he borrowed a friend's. Same thing.

So, Rough turned off the air pump, opened the bin for a couple hours, closed it and went to bed.

The next morning, the hygrometer read the same thing - 93%. At this point Rough wondered how the surface area of the lava rock compared to other terrarium humidifying materials, and also, if the volume of lava rock had a large impact on the RH.

Being the wacky experimenter that he is in other realms of life, Rough placed 7 PF cakes directly on top of the lava rock in a figure-eight formation.

Interesting things occurred:

First, the humidity was kept better in check with the presence of something actually in the terrarium, and by leaving the top off a few times a day.

Second, the cakes actually exhibited rhizomorphic growth onto the lava rocks, and into the water. Rough wishes he had pictures to prove the cakes were not only having a bit to drink, but in fact several mushrooms began to develop on the lava rocks up to an inch away from the cakes. Rough went to dunk a cake or two, and pulled out lava rocks with it. Really interesting.

Third, there was quite a large third flush. About half the second, which Rough didn't expect in the slightest.

Fourth, is a steady 93% too much? What's the optimum, it's still early, and we're forgetful.



This raises several questions, which we hope can be answered by the MycoCommunity.

Is lava rock a useful tool for those in much drier climates in ours?

Why did the rhizomorphs produce mushrooms extraterritorially?

Is lava rock a good terrarium base?





Rough's next mycojourney includes a much larger terrarium with the same setup (and thus, lower RH), and nice Anno-style PF cakes noncrumbled and cased, and popcorn casings. He just birthed and cold flashed them this morning. What a dog!


Please, we'd love to hear comments and feedback. We're happy to answer any questions.


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Offlineshroomstruck
member

Registered: 08/06/03
Posts: 185
Last seen: 13 years, 3 months
Re: Lava Rock vs Perlite/Geolite story [Re: lalala]
    #1888139 - 09/06/03 11:46 AM (13 years, 10 months ago)

Woof woof woof ...  that's three thumbs in dog talk!  :smile:

Just starting our terrarium and appreciate your observations .. keep up the good work!


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OfflineUncleMike
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Male

Registered: 05/18/03
Posts: 964
Loc: S.W. Virginia
Last seen: 8 years, 7 months
Re: Lava Rock vs Perlite/Geolite story [Re: shroomstruck]
    #1888276 - 09/06/03 01:18 PM (13 years, 10 months ago)

100% for cakes RH ( a friend told me that)


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Offlinescreaminsemen
enthusiast

Registered: 07/28/03
Posts: 308
Last seen: 13 years, 8 months
Re: Lava Rock vs Perlite/Geolite story [Re: shroomstruck]
    #1888277 - 09/06/03 01:18 PM (13 years, 10 months ago)

I use lava rock and find it's no uncommon for the myc to roam. The stuff is so cheap, you can throw it out and buy more. I really like it. Seems that the porous rock helps alot with humidity. i like it better than geo-lite or hydrton. But this is just my opion. my humidity stands at 94% all the time. My meter will go to 100%, but at 94% they seem to like it.


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Offlinelalala
Psychonaut
Registered: 08/03/03
Posts: 43
Last seen: 3 years, 3 months
Re: Lava Rock vs Perlite/Geolite story [Re: screaminsemen]
    #1888379 - 09/06/03 02:19 PM (13 years, 10 months ago)

Excellent, thanks for the input everyone!


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Anonymous

. [Re: lalala]
    #1888996 - 09/06/03 07:08 PM (13 years, 10 months ago)

.


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Offlinelalala
Psychonaut
Registered: 08/03/03
Posts: 43
Last seen: 3 years, 3 months
Re: Lava Rock vs Perlite/Geolite story [Re: ]
    #1890563 - 09/07/03 10:58 AM (13 years, 10 months ago)

Humidity seems to be mostly due to the lava rock, so thes air pump brings fresh air exchange. He's still using it.


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Anonymous

Re: Lava Rock vs Perlite/Geolite story [Re: lalala]
    #1890639 - 09/07/03 12:16 PM (13 years, 10 months ago)

the magpod(magash)pleases again!


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OfflineAerzun
journeyman

Registered: 06/27/03
Posts: 98
Last seen: 7 years, 2 months
Re: Lava Rock vs Perlite/Geolite story [Re: ]
    #1891919 - 09/07/03 09:54 PM (13 years, 10 months ago)

My friend uses lava rocks, but doesn't place them directly on the lavarocks, instead he puts a grill on top of the lava rocks and sets the cakes on the grill. And it seems to be workin fine.


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