Good salinity for rare macroalgae?

[gobby]

I'm planning on a florida centered community tank with enhanced colors, so I'll have sheepshead minnows, mollies, and possibly some native pistol shrimp. According to my research, all these animals are actually found in more brackish water rather than full strength salt so I'd like to keep the salinity between 1.015 and 1.020.

I've wanted to plant this tank with macroalgae such as red ogo, blue hypnea, and dragons breath but I'm not sure what their salinity requirements are. Also I wonder if any of the colorful macros would survive in my opae ula tank I keep at 1.010 salinity

 

[courtneykeeps]

Never tried it that low but worth a shot! There's only one way we find these things out.

 

[Subsea]

I'm planning on a florida centered community tank with enhanced colors, so I'll have sheepshead minnows, mollies, and possibly some native pistol shrimp. According to my research, all these animals are actually found in more brackish water rather than full strength salt so I'd like to keep the salinity between 1.015 and 1.020.

I've wanted to plant this tank with macroalgae such as red ogo, blue hypnea, and dragons breath but I'm not sure what their salinity requirements are. Also I wonder if any of the colorful macros would survive in my opae ula tank I keep at 1.010 salinity

I doubt those macros would thrive or even survive in brackish water.

Gracilaria Tikvahiae would be a better candidate.

Gracilaria tikvahiae, commonly known as graceful redweed, is a type of red algae (Rhodophyta) that thrives in estuaries and coastal waters with high nutrient levels. It's notable for its rapid growth, ability to withstand fluctuating salinity, and capacity to store nitrogen, giving it a competitive edge in eutrophic environments. This seaweed is also valued for its agar production and has been studied for its potential as a food

 

[gobby]

I doubt those macros would thrive or even survive in brackish water.

Gracilaria Tikvahiae would be a better candidate.

Gracilaria tikvahiae, commonly known as graceful redweed, is a type of red algae (Rhodophyta) that thrives in estuaries and coastal waters with high nutrient levels. It's notable for its rapid growth, ability to withstand fluctuating salinity, and capacity to store nitrogen, giving it a competitive edge in eutrophic environments. This seaweed is also valued for its agar production and has been studied for its potential as a food

Well these animals I'm keeping should have good survival at 25-30 ppt which would be around 1.020 sgd? I can probably go a bit higher to high end brackish but not quite full salt. I will consider gracilaria tikvahiae for sure