How tall are your speaker stands


What is the average height of stands for monitor speakers?
Would 30" stands be too tall?
The speakers are 12" tall and not too heavy.

Thanks
cdc
Post removed 
Thanks for the input. It looks like I need at least 30" which I question the stability as I never see commercial stands this tall. So it looks like either 24" stands on stands or DIY.
Perhaps 24" stands on paving stones or slabs from your local garden shop. They are usually about 2" thick, inert stack without sliding and come in sizes up to 24" x 24".
As an alternitive place the woofer 38percent of celing height and tilt the speaker so the tweeter is aiming at your ears. Maybe turn the speaker upside down. IDK just feeling kinda radical today.
Speaker stands should put the speaker's tweeter at ear level in a seated listening position.