Rocks

[tropic]

HI.Jus curious...can those rocks that has purplish tint on it algae like that are exposed when the tide lowers canbe used in the marine tanks/?? They seem to have some form of life in the rocks....looks interesting..But the rocks are like those coastel type...thnx!

[metals99]

can be use sure could but illegal to take...

[DaY]

if i not wrong. Those are cement or concrete rock..

They have no small holes or opening for the bacteria to stay in..

unlike live rock which has small spores or opening for the bacteria.

i dun think people would recommand you to use those type of rock inside your tank..

[tropic]

These are rocks which have pores inside and some organism seems to be living in it.. But basically given time they will thrive in the tank water ...wouldnt it?

[Fishy Clown]

Hmmm.... Maybe can but then the waters off Singapore coast are really polluted.