Coral ID: RED actinodiscus sp.
Coral Size: single polyp 1" diameter
Lighting: low (indirect mh/vho, placed under ledge, par unknown)
Water Flow: medium
Water Parameters: Ca 440, Alk 9, Mg 1300, NO3 0.2, PO4 near zero/undetectable
Growth: None in SIX months
Coral ID: BLUE actinodiscus sp.
Coral Size: single polyp 2" diameter
Lighting: low (indirect mh/vho, placed under ledge, par unknown)
Water Flow: medium
Water Parameters: Ca 440, Alk 9, Mg 1300, NO3 0.2, PO4 near zero/undetectable
Growth: additional 1" to diameter of original polyp in THREE months, pedal lacereration/reproduction has produced 6 new polyps, those 6 are now sized between 1.5" to 3/4" in those same 3 months.
These red and blue mushrooms are within 2 inches of each other in the same location of the tank. This is interesting and why empirical data on growth is a challenging and moving target. I try to understand what differences in my own aquarium could affect growth. Add in other reefer's tanks parameters and their growth rates, and the data becomes very generalized.
I also have two hollywood stunners, one grows fast, the other not so fast. Same location very close to each other, one is horizontal, one vertical. This seems to follow the consensus to the angle for chalices though, the vertically placed coral is the faster growing of the two. This growth difference is likely related to the amount/direction of flow or the angle(=amount) of light.
Regarding the mushrooms, the same exact aquarium and placement in that aquarium, same species, different morphs, and i have totally different growth rates...
I wish there was a way people could follow a recipe, it seems there are variables that I can't for the life of me figure out.
"There's Something in the Water"