09-16-2010, 05:19 AM
Join Date: Dec 2007
Location: Near San Francisco
| | Re: Crawfish/Lobster
crayfish can be very disruptive to a planted tank. They nip the tender stems, and are predatory toward the fish.
My Marbled crays have torn up the tanks they are in.
I have heard of some cray (maybe a native? Good sized one, anyway) even snipping apart plastic plants.
If you want one then set a side a tank especially for it. Rocks, driftwood... Then put some eggcrate or other divider across the back and grow the plants behind it. The plants will grow through the eggcrate, but I do not know if the ray will leave them alone long enough to grow and hide the eggcrate.
A planted sump is another way to get the benefits of plants (Filtration, oxygen...) when the tank has critters that destroy plants.