Algae ID, possible fish damage, and tank bugs?

[Ztrain]

So my tank has been coming along and I've noticed that I have a lot more hairy stuff on the live rock that I got from the LFS. I'm getting little fuzzy green on the dry rocks but hair type stuff on the live rock. Is this hair algae or something worse? What would be a good way of getting rid of it. My Trochus snails like to cruse the bare bottom and side wall glass where there's only a sprinkling of brown and leave the live rock almost entirely along. When I notice that a snail hasn't moved for a day or two I pick them up and put them up on the rock with the algae so they know where the food is. But they never go there on their own.

I have one scarlet reef hermit now that doesn't do anything just sits there hiding for weeks. The other scarlet reef I added because he wasn't doing anything I found dead on the bottom of a tank a few days ago and vacumed him out with a water change.

Algae video shot with camera not great but it's what I got:
https://www.youtube.com/watch?v=zy2yuy4f7eI&feature=youtu.be

These clowns have been doing their territorial fighting. Are they still looking okay? The front one has a white lip and almost no black left on the top fin. Also any idea what the bugs on the left glass are? They showed up Yesterday morning I noticed them right before going to do a water change.

https://www.youtube.com/watch?v=-PzybFzFJFw&feature=youtu.be

Thank you,

 

[Sk8r]

Things look fine. You're getting hair algae, likely. If it gets to look excessive, run a GFO reactor---most everyone needs one somewhen in their career, above a certain size tank. The bugs are probably copepods, which are good. Life in your tank is what you want. Even if you get problem species, just be glad the tank's alive and growing. Clowns always squabble at first, and the larger one will turn into the female of the pair. As long as they have enough room to move away from each other for a while and plenty of circulation, should do fine.

 

[Ztrain]

Awesome ty. I have been looking for snails that would eat hair algae and they seem to be rare if any. I have 4 troch in there but they don't seem to touch it. Nor does the scarlet reef. But I saw him sitting out in the open on a pile of leftover pellets for the first time last night. All pellets are gone. So at least I know he's mobile and eating finally.

 

[Sk8r]

Hair algae is pretty unpalatable stuff. The main function of a cleanup crew is to poo into the sandbed to keep it strong, and to clean up brown bottom fluff, so yours is about average. But hair can get to six inch long fields of solid green if your phosphate is way high, and some rock brings in plenty of it, ditto city water, if not ro/di filtered. So the GFO is a good remedy. If you have the problem my rule is 1 cannister Phosban per 50 gallons, changed monthly until algae just goes away. Spendy on the medium, but that way you're not sitting there hopefully waiting for medium that's already fully saturated to do what it can't do.

 

[Zer0.]

Emerald crabs can be good for munching on GHA

 

[Ztrain]

I picked up the snail that hasn't moved in a few days and the oder was awful. I did an ammonia test and it has a slight tinge of green. got the snail out. Another snail has a ragged looking foot. Other two are fine. Crab seems okay. PH also went up to 8.2 normally it's at 8.

 

[dotkat77]

Emerald crab worked for me.