Hi John,
I'm no expert, but I'm looking something similar up and found this page:
http://www.beautifulbritain.co.uk/ht.../pond_faq2.htm
Cheers,

Steve
"shazzbat" wrote in message
...
Does it matter whether frogspawn sinks or floats? Some friends brought us
some today because it doesn't survive in their pond because of the newts,
and we put it in our pond. One clump of it is floating, and the rest has
sunk and is covered by the silt stirred up in the process. Is this an
omen, and is there something I should be doing about it?

TIA
Steve