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hi everybody,
i do have a question concerning sand. 5 or 6 years ago i bought some "sand" which in fact was very fine Silica. When i say fine, i mean really really fine! What was nice was the crater, waves and other aquashape it was doing: was looking like the surface of the moon. Then my concern has been that it was so fine that it could easily go through the fish's gills and eventually damage them (i.e. abrasif like sand paper). Thus after 4 days i took it away.
What do you think ?
                        FLI USA
Yvan Alleau
712 Kings boulevard
97330 Corvallis, Oregon
home # 738-0606
College of Oceanic and Atmospheric Sciences
Oregon State University
office (Burt 222) # 737-3649, to be used wisely !
"When you're far from everything, you're getting closer to the essential"