hey GR420,
So yea.... I've had my arse kicked and handed back to me battered and bruised! I've not got lots of time so this will be brief.
First, I got the spunk fungi. It attacked everything, nothing would kill it including hard core disinfectant and liquid oxygen. It sticks to everything including the stems and sprayers and pumps. And when I say stick, running the stem under a tap on full power did not remove it and I ended up having to remove the new growing roots to get rid of it.
After getting rid the first time, it came back! After doing some experimentation, I can reliably replicate the spunk under control by just adding superthrive to water. I've used superthrive for years and never had an issue so I wonder if I just have a bad bottle. I won't be risking further losses so I won't be adding it into my propagator any time soon. I like adding NAA but it ain't no good if it grows spunk and not roots.
Next, thrips came along and started munching at everything! I think they got in hitching a ride on my dog but who knows. They were cleaned up pretty quick using plant invigorator but they had just seen the light and been resurrected from the death spunk.
Finally, I caught a real bad case of fungus gnats. So bad that in 24 hours, I had about 100 gnats jumped out of the pots if I thump the floor. I nearly threw the towel in at this point! But got my money out and dropped £20 on some tanlin. Gnats have all gone in 48 hours. Tanlin is fucking awesome!
So, the damage :( I lost 2 completely to rot and spunk, a further three to stress of all the above although they probably would of came back and I have 15 left. 12 are looking well and are growing vigorous now and 3 are .... surviving :) they have all now filled the small pots with white roots but the really bad three are looking worse for wear.
This has completely changed my plans. I can't risk an outbreak of super spunk in my amazon so I've abandon that ship and I'll be running 9 of these as a SOG in my 1m tent in 11ltr pots and my coco/batmix blend. Normal service will resume from now :)
What doesn't kill you makes you stronger hey! What a couple of weeks. If I'm honest, I've been giving myself a slap on the back for saving these :) I really thought I'd lost the mangos for good. If you feel like you're fighting a loosing battle or things go south, don't panic, think methodological and preserve and all will come right in the end. 
Dodgy ones holding on for dear life. 
Making progress
