"Jon W" wrote in message ...
My 60cm planted tank has course gravel approx. 5mm in diameter and I think
the plants are not reaching their potential.
I was wondering if adding a finer gravel to the top and mixing it in whilst
vacuuming would help or whether I need to bite the bullet and go for the
complete rebuild.
Any suggestions would be very welcome.

I have done this successfully:
http://mike-edwardes.members.beeb.net/plant/lotech.html
Try it, you've got nothing to lose!

Mike.
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Mike Edwardes Tropicals
http://mike-edwardes.members.beeb.net