What do you have you plant in?

I have been looking at a lot of pictures on this site and have came across quit a few plants that have these little brown balls sitting on top of the soil. Can some one fill me in on what this stuff is?

Most likely perlite... However Perlite is white, it does get a little brownish from the soil.

No...these look like stones almost...large brown circles?

Is this what your talking about. If so they are hydroton pellets. They are used mostly with hydro systems.

Expanded Clay Pellets




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NO GROW said:

Is this what your talking about. If so they are hydroton pellets. They are used mostly with hydro systems.

Expanded Clay Pellets




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Click to expand...

No, They are 10x the size of those.

maybe mini basketballs lol

stickyhits said:

maybe mini basketballs lol

Click to expand...

haha lol

I really don't have a clue what your talking about. Could you provide a link so I can look at what your looking at.

It's gotta be hydroton he's talking about they just look bigger in close up plant pics.

perhaps rockwool?

he's talking about hydrocorn.

these little brown balls sitting on top of the soil.

Click to expand...

sounds like rockwool

its rockwool

I think you're looking at clay pellets. If you read the posts that go with the pics, you'll see that these are used in hydro setups, not soil.
https://www.rollitup.org/attachments/grow-journals/12930d1180636091-trailer-park-grow-mvc-032f.jpg

clever_intuition said:

No, They are 10x the size of those.

Click to expand...

That would make them the size of grapefruits

It's not rockwool, he said balls.