ok thanks for reading thus far. i recently changed the water in my DWC bucket and noticed alot of "grime" on the inside walls. i think they r nutrients that kinda "settle" on the walls. sometimes i stickl my hand in their and swish it around to get them nutes flowin. is this normal? good? bad?
1 more question: How bad is algea when it comes to roots? i have a half inch aquarium tube that i use as a level indicator and i use it to inject nutes into the bucket, anyway, this tube is clear and has algea growth in it. i recently covered it with a rag so light doesnt hit it but im just curious. any information whatsoever will be appreciated. thanks.
p.s. i can take pics if need be