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Old 06-04-2018, 03:56 PM   #1
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White spikes growing on aquarium rock

Does anyone know what are this white spikes growing in my aquarium live rock?
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Old 06-05-2018, 02:19 AM   #2
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What are the fish and snails you have in the tank?
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Old 06-05-2018, 08:22 AM   #3
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I do not have any fish at the moment., only a Mexican snail and a starfish.
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Old 06-06-2018, 01:41 AM   #4
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Turbo snails eggs look like a squiggle line of gelatinous dots.

A search indicates a possible deposit of Starfish eggs. I saw a couple pics which looked very much like your pic.

What type of starfish?
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Old 06-06-2018, 05:08 AM   #5
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Is it soft ?
It could be a macro algae turning white .
Was it on the rock or did it just grow?
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Old 06-06-2018, 07:14 AM   #6
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Quote:
Originally Posted by Autumnsky View Post
Turbo snails eggs look like a squiggle line of gelatinous dots.

A search indicates a possible deposit of Starfish eggs. I saw a couple pics which looked very much like your pic.

What type of starfish?


It is a sand sifting starfish. 
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Old 06-06-2018, 07:18 AM   #7
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Is it soft ?
It could be a macro algae turning white .
Was it on the rock or did it just grow?


I am afraid to touch it, therefore I do not know if they are soft. They look hard and stiff. They show no movement. It just grew on the rock from nowhere.
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Old 06-06-2018, 06:32 PM   #8
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It looks like Neomeris sp. "spindle weed" bleached out . Do you know your Ca level ?
First picture in link ,but your is white.
https://www.google.com/url?sa=t&rct=...yF93klyo6ji2hG
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