gravel changing question

  • We are currently upgrading MFK. thanks! -neo
killerfish;1989088; said:
Thanks everyone hmm that thread makes me wan't to switch to sand but i don't wan't to pull out the under gravel filter

And i'm pretty sure you can't put sand in top of gravel right allways figured it would fall threw am i wrong
NOPE!
you are correct it WOULD sift to the bottom...
 
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