Got Some Macro Algae Hitchhikers

[Chickadeedeedee]

I got some cool macro algae hitchhikers in the tank. I am trying to figure out what exactly they are. I also want to know if they are friend or foe.
The first is this dude. It grows like crazy. This is only a few weeks of growth. I have been letting it grow out a bit as it is good nutrient transport and is really easy to remove, though I will need to get rid of it eventually.

This is the second guy. Been growing for over a month. Probably going to keep it if it is not a foe.

 

[Subsea]

First picture is Bubble algae.

Bubble Algae, Valonia​

Usually a member of the Valonia genus, this fast spreading algae can go from just a few "plants" to covering the tank in a short amount of time. Because of this you will want to treat it quickly, before the algae has the opportunity to send spores throughout your system.

Manual Removal: Like most algae, this species can spread from fragments. When you pluck them from the rock, try to remove it all from the rock and that may require scraping or it could grow back. Also try to catch any dislodged pieces. It is usually easiest if you get them small, cover them with a baster, scrape the baster along the rock, and when the Valonia comes off release the plunger and suck it up. Discard and repeat. Be aggressive with your manual removal, removing it every time you see it and you should win out.

Clean Up Crew: Mithrax crabs (Such as Emerald and Ruby Crabs) and Pitho Crabs will eat it, as well as certain Rabbitfish.

It is fairly easy to keep this species out of the aquarium by inspecting rock and frags added to your tank.

Not sure which red macro is #2: perhaps Gracilaria Hayi.

A Look at the Pom Pom Macroalgae

Of all the genera of macroalgae regularly used in planted refugia, Gracilaria quite arguably has the most representatives. While there are a few very soft

www.algaebarn.com

 

[Chickadeedeedee]

First picture is Bubble algae.

Bubble Algae, Valonia​

Usually a member of the Valonia genus, this fast spreading algae can go from just a few "plants" to covering the tank in a short amount of time. Because of this you will want to treat it quickly, before the algae has the opportunity to send spores throughout your system.

Manual Removal: Like most algae, this species can spread from fragments. When you pluck them from the rock, try to remove it all from the rock and that may require scraping or it could grow back. Also try to catch any dislodged pieces. It is usually easiest if you get them small, cover them with a baster, scrape the baster along the rock, and when the Valonia comes off release the plunger and suck it up. Discard and repeat. Be aggressive with your manual removal, removing it every time you see it and you should win out.

Clean Up Crew: Mithrax crabs (Such as Emerald and Ruby Crabs) and Pitho Crabs will eat it, as well as certain Rabbitfish.

It is fairly easy to keep this species out of the aquarium by inspecting rock and frags added to your tank.

Not sure which red macro is #2: perhaps Gracilaria Hayi.

A Look at the Pom Pom Macroalgae

Of all the genera of macroalgae regularly used in planted refugia, Gracilaria quite arguably has the most representatives. While there are a few very soft

www.algaebarn.com

I am not too sure that is a bubble algae. I do have bubble algae elsewhere in the tank and have gotten a pithos to fight it. I am also looking at a one spot foxface, which may help. In addition I have been aggressively removing it.
The algae in the first picture is a leaf. There is no interior or spherical shape to it. It will not "pop" like a bubble algae. I was thinking it was something like a sea lettuce.

 

[Subsea]

OK. I can see the resemblance to Ulva. What do you think the red macro is?

 

[Clarkjw2002]

Second on Ulva in the first pic. I'd keep around. Think the second might be a Dictyota species. If so, this one may be problematic. I had one tank where it spread everywhere and nothing would eat. The species I had was brownish with hues of blue and the characteristic y branching "leaves".

 

[BristleWormHater]

Id remove both honestly, though I guess ulva could stay if you like the look. The second looks like iridescent dictyota, bad stuff, itll multiply very fast and has very few natural predators, none of which are available in the hobby to my knowledge.