Hey everyone, sorry if these are obvious ones but I'm new to reefs
Few things I'm not sure what they are on my new live rock:
1) This red thing: (also the 2) little critter crawling on it?): https://imgur.com/a/ouKw9
3) Purple stuff, I have two rocks with this: https://i.imgur.com/tRJo64N.jpg
4) And a tiny urchin I think? Is this reef safe?: https://imgur.com/a/T37UJ
5) Any clue what kind of crab this is? https://imgur.com/OR8KnZm I put him in my sump in case he's not reef safe.
Thanks!
Few things I'm not sure what they are on my new live rock:
1) This red thing: (also the 2) little critter crawling on it?): https://imgur.com/a/ouKw9
3) Purple stuff, I have two rocks with this: https://i.imgur.com/tRJo64N.jpg
4) And a tiny urchin I think? Is this reef safe?: https://imgur.com/a/T37UJ
5) Any clue what kind of crab this is? https://imgur.com/OR8KnZm I put him in my sump in case he's not reef safe.
Thanks!