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What is this growing out of my live rock. They are almost like tentacles with white spots on the end. The tentacle things sway in the water but the whole thing just stays put. It doesn't travel around on the rock. Does anybody have any idea what this could be? And is it good or bad?

My domino and my sea urchin seem to have made some type of relationship. The domino almost looks like he's trying to host in the spiney sea urchin. Which seems really odd to me. He backs up carefully into the spines of the urchin and the urchin just sort of pushes the domino back and forth with...

Ok so I believe I am nearing the end of cycling a new 160 gallon tank. Above are the water parameters for today and below are the water parameters from 4 days ago. The nitrites and the nitrates have progressively been going down and ammonia has pretty much stayed relatively the same. I am...

Hello all, I am setting up a 160 gallon tank. It is going well so far and it is finishing up going through it's cycle. I have a list of fish that spark my interest. I know I need to add them very slowly but just need some advice on order to which to purchase or also if any of them are not a...

I have this encrusting black sponge forming around my button polyp. I don't want it to take over all of my rock. So far it's isolated on this frag plug. I'm thinking about just moving the plug to the substrate so it can't spread further because the sponge is good correct? But I don't want it to...

Bought these at LFS. Can't remember the name.

I noticed all these mushroom looking things popping up on my rock. I'm assuming they are good??!! They seem to be everywhere.

Hello all, my coral banded molted last night which is great. But today his body has turned green. I read that it can be eggs, however I only have one not a pair!!!!

Ok so yes I'm brand new at this and probably just research and worry too much. I have a biocube 29 that is very established and doing great. All water parameters are perfect. I have run across some research that said that bio balls are not good for filtering. Then I ran across something that...

what is this coral looking stuff growing on my rock? I'm guessing it's good??!!

I'm trying to find a good location in my tank for this coral and can't remember the name when I bought it to research it.

I am brand new here. I have always loved fish and had freshwater aquariums since I was a kid. I have always wanted to try saltwater aquariums. I think they are absolutely breathtaking and they mesmerize me. I did research for a couple months and then my birthday just passed so I my family bought...