Help! Please

[spencerz123]

I was just doing my morning ph check and found white slim in my buckets.

I have no idea wtf it was i took it out of the bucket and into the yard and flushed it with the garden hose to remove any signs of it from plant. I made a new batch of nutes, put it into a new bucket and added some H2O2..
I would like to know what do you think it is and also did i do the right thing

 

[NuttyProfessor]

my friend used coloured buckets and had issues with slime ect , the buckets were letting light in , just a thought . you could be having the same problem

 

[Waterlab420]

Yup, flush it wash it out real good! I used a sprayer from the sink on my roots to get any gunk off.

Def want to use a dark colored bucket! Bacteria loves light. Heard people wrapping them with that silver bubble wrap stuff, or change bucket color.