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Samwise

What's wrong with my FC setup??

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Samwise

Hi peeps,

Would appreciate some input on my current FC setup...I'm getting results, but they are inconsistent and not as great as they could be. I'm trying to emulate Don's "Low-Maintenance Psilocybe Mexicana Fruiting Chamber Tek" (linked below).

https://www.shroomology.org/forums/topic/16079-low-maintenance-psilocybe-mexicana-fruiting-chamber-tek/?tab=comments#comment-131652

In the FC at the present time, I have 2x trays of P. galindoi, and 2x trays of P. hoogshagenii 'Semperviva'. One tray of the P. galindoi is fruiting quite well, the other not so much. The Semperviva is a really slow fruiter, but a good amount of pins in one tray, and one single aborted pin in the other...given how hardy this species is, this has me concerned about my setup. I have some Mexicana 'Jalisco' and 'Chicon Nindo' LC standing by, but want to get my FC dialed in ready before I get round to fruiting them. For the FC I'm using a 64 litre tub, with water saturated perlite in the base, with 2x air stones connected to an air pump, two rows of holes drilled, one above the perlite, the other near the top of the tub, and there is a fan in the corner that comes on every 15 minutes at 6 hour intervals. Humidity and temperature in there are both fine. I'm not using a light currently (some growers recommend a blue LED bulb when fruiting Mexicana), but they do have a sky light above them are in a room well lit with natural light. Would it be a good move to get a light up and running to play it safe?

I've attached a pic of my setup...wondering if anyone has any observations on what the issue(s) could be here? I'm wondering if the fan could be an issue or weak spot here? Unlike Don's which is integrated into the side of the FC tub, it is not bringing in and circulating as much fresh air from outside (relying on fresh air being brought in via the holes only). The fan also being at one end in one corner of the FC could also be an issue, perhaps I would be better integrating it into the upper wall of the FC tub in the middle to give a more even distribution of fresh air. Any thought on any of this? Photo of my FC setup is attached.

Any input on this would be much appreciated! :)

grow setup.JPG

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Mush Zombie

I agree, looks like there is not enough fresh air, and not enough evaporation. Have you been monitoring temperature as well? Low temps, like cubes, are best for mexicana ime. also helps keep the RH up with lower temps, since the air can't hold as much water at lower temperatures. 

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Samwise

Thanks a lot for the input guys, much appreciated, I thought it may be a fan issue. It's good to know that the aim of the game is to get stale air out of the FC (and draw in fresh air via the holes) with the fan; I figured it was more for blowing fresh air in, so I appreciate the clarification. I've just ordered a comp-USB fan off eBay so I'll get that integrated into my FC ASAP. The temps/humidity in there are both fine, so it is very likely a FAE issue I think.

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Mush Zombie

your casing looks a little wet for sure. 

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Samwise

Yeah, massive FC lid drippage deluge every time I open it, the fruiting trays and casing are a bit sodden. Hopefully with the new fan integrated into the FC and with the trays spread out more in there (rather than bunched together as they are now to make room for the current fan) it will allow for more air flow and help prevent build-up of excessive condensation and drippage.

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Mush Zombie

to get rid of that, you need to figure out what the dew point is of the plastic, and keep the air inside of the fc within temperature rage of dew point, at the RH the fruiting chamber averages. the condensate reveals your air temp inside of the fc is quite a bit warmer than the plastic of the tub.

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Samwise

Good to know, thanks dude for your input, you're mycological gold dust. :)

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Samwise

Hey peeps, so I have the CPU fan and have made an appropriate sized hole for it in the lid of my FC. I just want to check something...in Don's linked "Low-Maintenance Psilocybe Mexicana Fruiting Chamber Tek" guide, he recommends having the fan blowing fresh air INTO the FC, whereas you guys seem to be saying the opposite, that the fan should blow [stale] air OUT of the FC (and draw in fresh air through the air holes). Wondering why the preferences vary here? And does either/or more or less achieve the same thing anyway? I just want to be sure on this before I fix the fan in place in the FC lid.

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Moonphase

I've been thinking a lot about the FC, fanning, misting, fogging for a couple of weeks.   Important to get the co2 out and fresh air in to promote evaporation which is the water vapor moving in an upward motion.   It would see logical to evacuate the air out of the top of the FC using the fan as an exhaust fan and the FAE holes as your fresh air input. The air being draw up would seem to help the evaporation process.   That being said the holes at the lower end of the tub would appear to have to be larger than those in the top and middle to aide in this task.   Just trying to visualize everything from a common sense general air water vapor flow viewpoint.   Anyone else have thoughts on this before we start drilling holes and mounting/hanging fans?   

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magicman
On 4/19/2018 at 4:04 AM, Samwise said:

Hey peeps, so I have the CPU fan and have made an appropriate sized hole for it in the lid of my FC. I just want to check something...in Don's linked "Low-Maintenance Psilocybe Mexicana Fruiting Chamber Tek" guide, he recommends having the fan blowing fresh air INTO the FC, whereas you guys seem to be saying the opposite, that the fan should blow [stale] air OUT of the FC (and draw in fresh air through the air holes). Wondering why the preferences vary here? And does either/or more or less achieve the same thing anyway? I just want to be sure on this before I fix the fan in place in the FC lid.

I have the comp fan pulling the air out of my GH. If you have it pumping fresh air in to your FC, the stale air and co2 will have to be pushed out through the polyfil holes. If your fan is exhausting out the old air and co2, it is pulling fresh air in through the polyfill, filtering it while doing so.

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Samwise

Makes sense, thanks for the clarification dude.

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Mush Zombie
On 4/21/2018 at 12:20 PM, Moonphase said:

I've been thinking a lot about the FC, fanning, misting, fogging for a couple of weeks.   Important to get the co2 out and fresh air in to promote evaporation which is the water vapor moving in an upward motion.   It would see logical to evacuate the air out of the top of the FC using the fan as an exhaust fan and the FAE holes as your fresh air input. The air being draw up would seem to help the evaporation process.   That being said the holes at the lower end of the tub would appear to have to be larger than those in the top and middle to aide in this task.   Just trying to visualize everything from a common sense general air water vapor flow viewpoint.   Anyone else have thoughts on this before we start drilling holes and mounting/hanging fans?   

You do not need to get water vapor moving upwards for evaporation to begin/increase. The opposite works better, in fact. Evaporation occurs when energy is transferred into the water molecule itself. Whether that is just by pushing air down onto it, or by using heat etc. 

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Don_Shadow

Sorry that tek should be modified to state that the fan ought to exhaust air out of the chamber, not blow it in. Exhausting the air provides much more consistent evaporation. Extra fanning after misting to promote evaporation during the pinset is pretty much mandatory for Mexicana also. Once pins form 5 mins every four hrs is good, provided that your air pump isn't a POS. 

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Mush Zombie

I pump air in instead of exhausting with my GH. but the bottom isn't totally sealed so all the co2 is exhausted rapidly. I agree 100% with an exhaust fan in a tote, however. If you decided to upgrade to a GH in the future you can make an air intake, and I recommend that for those, to anyone who is interested.

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Samwise

Good stuff, thanks y'all. :)

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Mush Zombie

Absolutely. I'm pretty sure @Don_Shadow was having the same problems with his set up before he asked for help here and corrected the issues using several members advice, which is what led to the creation of his Tek that he dubbed "the shadow box" on mycotopia.

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Don_Shadow

I apologize to anyone who feels I didn't give credit where it was due. I did make it clear in the description that it isn't my tek, but I'd be happy to credit any specific individual in the comments section. I do recall inquiring here about using a humidifier and fan in conjunction, but found that the fan alone was more effective based on my own conclusions. All in all, my only motivation was the desire to share knowledge, much of which I did indeed discover here. I appreciate it.

The name is a poetic device (https://en.m.wikipedia.org/wiki/Shadow_box) and has nothing to do with my avatar (Donald Shadow was my grandfather's name).

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Mush Zombie

we already talked about that, you even asked if it was cool to repost it over there, and we all unanimously said yes. it's your tek and your info to share, no need for any kind of apology to any of us over here.

One of the admins over there, that got banned from here for drunk posting on the forums, tried to clone one of my teks for mycotopia. did a horrible job btw. 

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Don_Shadow

Ah, gotcha. I have a hard time interpreting text, probably due to too many cranial impacts in my youth. Hope all's well over here, and good luck with the grow Sam :)

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