ID on these two please

[wolffvet]

I think this one is grape kelp after posting the last time but I just want to make sure that it is not harmful. I am not sure about the next pic. I think it is some sort of algae but it is very bristly

 

[wolffvet]

Is this good or bad?

 

[wolffvet]

Anyone? I would like to know if I should remove these from my tank or if I can leave them.

 

[bigarn]

The second pic. appears to be a type of hair algae...could really spread and over run a tank. If the first pic. is a kelp, I would think it can spread also. I would remove both, but that's just MO.

 

[bdubbya]

Both of those aren't going to take over your tank if you keep an eye on them. The second one looks kinda like turf algea. When I pull mine out of the tank it pulls out in small tufts. It doesn't seem to cause any problems.
Good luck.

 

[wolffvet]

Thanks guys! I am thinking about getting a small tang which should help keep it under control.

 

[wax32]

I thought tangs aren't suitable for a smaller tank?

 

[stuckinfla]

I have/had both. #1 i believe is controlable. I only had mine a short while until it disapeared. The second.....GET IT OUR. I thought it was cool to. Now it has covered every rock because I left it so long and before you know it, its every where.