If urchins had eyes...

creativeballance

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They would be unstoppable and the perfect algae control.

Unfortunately, one of mine spends entirely too much time lost on the glass...
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The time it is "working" on the rocks, it has made a amazing difference! Just a week ago ALL of my rocks were covered in this...whatever collection of algae this is!
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You can see some definite pathways showing where it's gone. I noticed that theres many spots it cant get to, so I got a smaller pin-cushin urchin today. I'll post pics in a week, if anyone is interested.

Once I get my nitrate issue figured out, I'll have to figure out how to keep the poor thing fed!
 

Ron Reefman

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Urchins, like many snails seem to like the algae that grows on the glass. Or maybe it's the fact that they find the smooth glass so easy to stick to they feel safer from predators?
 

Mastering the art of locking and unlocking water pathways: What type of valves do you have on your aquarium plumbing?

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