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Unread 12/28/2020, 06:24 AM   #1
nikon70
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What’s thing?

I have two of these little guys that started growing...

Any idea what they are ?




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Unread 12/28/2020, 07:36 AM   #2
bradleym
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They are a common hitchhiker called ball anemones. They stay small and are pretty harmless.

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Unread 12/28/2020, 08:33 AM   #3
nikon70
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Thanks bud, happy to see them. I love the natural eco system thriving...

These worms are spreading well, the rock started with nothing, but after a year they started to pop up...




These guys are rife in the bed, it’s like a dance show at feeding time, they all come out and it’s like the sand is alive




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Unread 12/29/2020, 03:48 PM   #4
Sk8r
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I'm another one who appreciates what comes on the rocks. Those hydroids in the middle photo may give you trouble if you try to site a coral next to them, but they can be managed (or gotten rid of if you must)---and I have quite a few of those worms (below) too, and enjoy watching them go. Some want only what they've planned, but I like surprises in the rocks, and the only place I draw a firm line is caulerpa weed. If I spot that, I get the rock out and treat it, but all the rest I just enjoy watching.


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Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low.

Current Tank Info: 105g AquaVim wedge, yellow tang, sailfin blenny,royal gramma, ocellaris clown pair, yellow watchman, 100 microceriths, 25 tiny hermits, a 4" conch, 1" nassarius, recovering from 2 year hiatus with daily water change of 10%.
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Unread 12/30/2020, 04:27 AM   #5
hottuna
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encrusting white or yellow sponge is my fav hitch hiker..natural filter once it spreads to the underside of all your rocks ..


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Unread 12/30/2020, 08:55 AM   #6
bradleym
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I've always gone out of my way to collect all the hitchhikers/pests for my tank. Some of them are even kept as if they were coral (majanos for example). I even keep the caulerpa in the sump, as I have 2 tangs that will dispatch it if they see it anywhere in the display tank. I'm actually so into hitchhikers I've been trying to find a particular one to buy! The only thing I can't ignore is aiptasia. They are a legitimate nightmare in a healthy, well-fed reef tank.

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Unread 12/30/2020, 08:57 AM   #7
bradleym
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Quote:
Originally Posted by hottuna View Post
encrusting white or yellow sponge is my fav hitch hiker..natural filter once it spreads to the underside of all your rocks ..
I have white, yellow, purple, and black! Not sure if there are any other colors, but purple is probably my favorite so far.

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