Spiky white worm. Help please.

[fergieman]

I just saw this today crawing in the sand bed under my rock. Any idea what this is?

 

[WheatToast]

That is a Bristleworm (not the Fireworm variety). They feed on detritus within your rocks and sand and usually serve as a great member of the clean-up crew (though very large individuals may become somewhat belligerent). Try not to touch them as their bristles may become embedded within your skin.
Also, how many gph of water flow are passing through your aquarium? I notice that your sandbed is coated in Cyanobacteria, a consequence of low flow.

 

[fergieman]

That is a Bristleworm (not the Fireworm variety). They feed on detritus within your rocks and sand and usually serve as a great member of the clean-up crew (though very large individuals may become somewhat belligerent). Try not to touch them as their bristles may become embedded within your skin.
Also, how many gph of water flow are passing through your aquarium? I notice that your sandbed is coated in Cyanobacteria, a consequence of low flow.

Thank you for taking time to reply. I guess my next questin is how did it get there? Or where do they come from? Don’t know much on the flow rate but I have the Hygger wave maker hg 951 on both ends and anothe regular on on top not to mention the output from my cannistwr filter. (Please see pics) is there a better way to treat cyano?

 

[WheatToast]

Thank you for taking time to reply. I guess my next questin is how did it get there? Or where do they come from? Don’t know much on the flow rate but I have the Hygger wave maker hg 951 on both ends and anothe regular on on top not to mention the output from my cannistwr filter. (Please see pics) is there a better way to treat cyano?

In my experience, countless Bristleworms have hitchhiked into my aquarium every time I added live rock. If you see one, there are bound to be many, many more.

I am no expert on Cyanobacteria control, though I have heard that the Blue leg hermit crab (Clibanarius tricolor) will eat it.

You seem to have some pretty powerful pumps, though I should have also asked how large your aquarium is (volume).

 

[fergieman]

In my experience, countless Bristleworms have hitchhiked into my aquarium every time I added live rock. If you see one, there are bound to be many, many more.

I am no expert on Cyanobacteria control, though I have heard that the Blue leg hermit crab (Clibanarius tricolor) will eat it.

You seem to have some pretty powerful pumps, though I should have also asked how large your aquarium is (volume).

I have 29 gallon with not a lot of corals -kenya trees an overwhelming greenstar polys, some leather mushrooms (greens) and small zoas I am trying to grow and 2 anemones.