Yes they are, seeing the bottom of a dark bottomed pool is not difficult at all contrary to the opinions of some
No
lakes or pools
Yes
hydrocarbon acid
Under no condition do fiberglass pools have "ripples" on the bottom after they are installed. Of course, the pool could have been damaged in some way, then improperly repaired, before or after it was installed.
The water sinks and pools at the bottom of the tank
there is more grip with bare feet.
they are safe from preators & laze around on rocks
deep enough for no one to be able to touch the bottom
The Benthic Zone.
No sanitizer? Not safe! Especially for females.
yes domestic cats do have non white or red on top and dark on the bottom