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Harmless (actually a very beneficial) amphipod.
If you could explain your research, hypothesis, etc we might be able to help more.
Those JBJ's have a controller. That's why they are so expensive.
Engineer gobies can disappear for days or even a week. They spend most of their time in the sand and rocks digging tunnels as was previously stated....
Some species of abalone (sea ears) get pretty big. I wouldn't get one with an acrylic tanks as they tend to scratch them with their radula.
I would contact them to find an authorized dealer that is close. Their pumps have a 1 year warranty I think. Octopus Connect
I think only mods can do it. I know when you are first posting, you can pick "urgent" or "resolved". I'll do it for this thread and then I'm sure...
They are marked as private
Not really....they're fairly innocuous. If it didn't have a skeleton and was a psuedocorynactis (ball anemone) they have a pretty wicked sting like...
Your probably looking at it....they stay pretty small. They will have babies though.
They poop out the spores undigested and will actually cause your coralline to spread faster
It has a mouth....it's just hard to see. They are non-photosynthetic so that's how they get their food.
All of the above
Store it in the same room as your tank. You'll add so little that if you top-off in a location with good flow a degree or two of temperature...
When topping off for evaporation, there should be no salt in it. It should be water only. During evaporation, water leaves your tank but the salt...
That's an excellent SG for a mixed reef. NSW would be 1.0265. However, in a tank with that few gallons a little evaporation would make your SG rise...
It would be necessary to see the skeleton (or lack thereof) and/or where your rock came from. It could be a Balanophyllia, Paracyanthus,...
Do NOT do that. You could accidentally rip it's foot. If the parameters are fine, it will come out on it's own.
Sumps and Refugiums Everything You Always Wanted to Know About Sumps, Part I Everything You Always Wanted to Know About Sumps, Part II...
http://www.3reef.com/forums/i-made/diy-sump-refugium-advice-measurement-help-38460.html...
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