[Whiteish fuzzy stuff on Bamboo shrimp legs and side]

Just now, Irene said:

Salt is a pretty good fungus deterrent in my experience. Did you ever see any improvement with your shrimp? 

He molted and everything came off and all is good now, thank you! @Irene

[Whiteish fuzzy stuff on Bamboo shrimp legs and side]

I have been treating this as fungus but i havent noticed any improvements. I started salt dips yesterday and have completed one treatment of erythromycin and am starting a second dose

Ammonia:0

Nitrites:0

Nitrates: unsure

Gh/Kh:don't have a test but i know i have hard water

temp:76-78F

PH:7.8

Any help is appreciated!

(fine red line outlines the fungus due to it being hard to see against the biofilm on the driftwood) 

[I made an oopsie...]

So about 2 months ago I started a 10 gallon cycle with ammonia only realizing now (the day I got my betta) that I used ammonia with surfactants. I eventually got the cycle but am I totally screwed? It's a planted tank if that makes any difference. I haven't noticed anything but Ive also only had the betta for 12 hours. Thanks. Should I do some large water changes or just see how things pan out, I really don't want to tear it all down