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bodhisatta said:
stacking filters doesn't make the sum of the filters better. it's like stacking chain link fences trying to stop mosquitoes. a prefilter will keep your main filter cleaner longer but it won't make it more efficient

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bodhisatta said:
whatever your filter face is in square feet times 100 feet per minute is your CFM. so for a 24x24 that's 2x2 feet so 4 square feet. times a flow rate of 100 feet per minute. you want 400 cubic feet per minute.

if your filter has a resistance of 1 inch w.g. at 400cfm flow then your blower needs to provide 400cfm at 1" w.g. (realistically add 20% or more)

if your filter has a resistance of 1.5 in.w.g. at 400cfm your blower needs to provide 400cfm at 1.5 in.w.g. bare minimum

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Ok I reordered the PROPER filter. The same one you have I believe, a Flanders Nuclear Grade

Here are the specs

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full_wave said:
Do you need to isolate with agar, or can you just drip some spores onto agar, cut a wedge out once it's colonized and throw it in with some oats?

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bodhisatta said:

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full_wave said:
Do you need to isolate with agar, or can you just drip some spores onto agar, cut a wedge out once it's colonized and throw it in with some oats?

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Almost no one isolates. Most people use agar to ensure cleanliness of their cultures.

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Okay, so am I right to assume that it's better to do A2A transfer until you get a 100% clean plate than to just cut a clean wedge out of a plate that has a contam in it and use it for grain. Thanks for all the help btw