so for how long do they float for?
 

Hello,

Just wondering does expanded clay pebbles float? and if so for how long do they float for?.I have a problem with mine, where they are floating and so it would be unstable to plant anything.
I've searched around the forum looking for info about the floating and haven't found that much info. People have stated it does float but not for how long and how to help it to sink.
Any help would be AWESOME coz yeah thats my only hold up atm. Im using a flood and drain system in half barrel grow beds.

Any suggestions?

Please help.

I didn't find the right solution from the internet.

References:
http://www.backyardaquaponics.com/fo...hp?f=14&t=5638
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Thank you.