Whiterabbitrage
New member
For the last three weeks Zoas have been disappearing. A colony of over 50 is now 5 and a colony of over 200 is now 8. Who is causing this destruction?
The suspects:
* Bumble Bee Snails. Carnivorous snails purchased to eat Vermitids. They are usually in the sand however and the Zoas in the sand and lower part of the tank are fine.
* McCoskers Wrasse. Not known to eat sessile inverts but he as been swimming around with a very guilty look on his face.
* Sea Urchin. A hitch hiking baby urchin lives next to one on the eradicated colonies. However he looks like a Common Rock Boring Urchin, so would be a Vegetarian. He is solid black, bores into rock and has lots of spines, too many spines for a Pencil Urchin. His spines are not sharp though. Could he be a Pencil Urchin after all?
* giant Bristle Worm. I have seen them that far up the rock. As I continue o starve them out they may be getting more desperate.
* Emerald Crab. Got an Emerald Crab months ago to help with Bubble Algae. He's been MIA for a long time. Could he be the perpetrator ?
Once the lights go out, I use the red flashlight to try to catch the Zoa murderer in the act. I check the tank every two hours after lights out. I never see anything there! Who is responsible for all this destruction?
The suspects:
* Bumble Bee Snails. Carnivorous snails purchased to eat Vermitids. They are usually in the sand however and the Zoas in the sand and lower part of the tank are fine.
* McCoskers Wrasse. Not known to eat sessile inverts but he as been swimming around with a very guilty look on his face.
* Sea Urchin. A hitch hiking baby urchin lives next to one on the eradicated colonies. However he looks like a Common Rock Boring Urchin, so would be a Vegetarian. He is solid black, bores into rock and has lots of spines, too many spines for a Pencil Urchin. His spines are not sharp though. Could he be a Pencil Urchin after all?
* giant Bristle Worm. I have seen them that far up the rock. As I continue o starve them out they may be getting more desperate.
* Emerald Crab. Got an Emerald Crab months ago to help with Bubble Algae. He's been MIA for a long time. Could he be the perpetrator ?
Once the lights go out, I use the red flashlight to try to catch the Zoa murderer in the act. I check the tank every two hours after lights out. I never see anything there! Who is responsible for all this destruction?
