The lack of coralline algae on a section of a turbo snail’s shell may
indicate that it is spending time partially out of the water.
Turbo snails have a habit of resting near the surface of
the aquarium with the top of their shells sticking up out
of the water. The coralline algae on the exposed part of
the shell can then bleach under intense reef lighting. Keep
an eye on them for a few days to see where they spend the daylight
hours. Most likely, you’ll find them gathering on top of a powerhead,
heater, or other makeshift ledge located just beneath the water surface.
In any case, the bleaching likely does not indicate a problem with your
water quality and poses no danger to the health of your snails.
From Fresh to Salt
I was thinking of going from a freshwater to a
saltwater reef/fish setup sometime in late fall. Right
now, I have a 110-gallon, 48- x 18- x 30-inch tall tank.
I am using a 925-gallon-per-hour canister filter, a CO injector,
about 156 watts of light, and two 300-watt heaters. Can you tell
me what else I would need, e.g., a new type of filter? Is there more
of a smell with saltwater setups? The tank is in a bedroom. I would
like to do it right from the start, and I will begin getting things
I need over the summer. Also, do you know of a good book on
this subject that’s not outdated? Any information would be great.
Based on your equipment list, there are a few
changes/upgrades you’ll need to make in order to
have a successful reef system. Instead of the canister
filter, I would recommend investing in some form
of sump/overflow system and a good protein skimmer. Most
reef hobbyists have moved away from using canister filters—or
mechanical filters in general, for that matter—on a full-time
basis because they tend to trap detritus, which then decomposes
and produces nitrate. However, some will run canister filters
temporarily from time to time in order to polish the water a
bit (for example, after stirring the substrate and/or blowing
accumulated detritus off the live rock), so you can still put that
piece of equipment to good use if you so choose.
Tropical Fish Hobbyist