mushrooms growing in my plant soil

mushrooms after I overwatteredn night before last and gave it its first dose of pirana and terantula by advanced nutes. These products were half off and were from last season, probably a year old, maybe a little bit more. also soil i s from a friend that I got the plant from and its probably some recycled compost soil. mushies good or bad? cut them or leave them? I klnow they produce CO2, but what if they spore out, will that shit spread? thanks RIU!

Hahah that shit is crazy as hell! The don't look like any cubensis strain.

pick them and scrap the top inch or so from the pot and replace it with fresh soil.
when the caps open they will drop their spores and spread, possible contaminating the other pots.
I've had these little yellow mushies growing in my roots organics also, they're not harming the plant from what i gathered but
i'm sure left unchecked it could throw the balance of the rhizosphere off and affect your plants root system... possibly

whats your relative humidity?

yeah i had them to,its from overwatering they wont hurt nothing just pick them and tossem, and you should be good

http://www.mycokey.com/newMycoKeySite/MycoKeyIdentQuick.html this site is pretty useful if you wanna find the specific species of mushroom. Most likely its Leucocoprinus birnbaumii, thats what i had.