Lately I've been having some of my SPS corals growing super fantastic only to have them begin to turn white from the base and slowly die from the bottom up.
Basically I have 2 small colonies that started out as 1" frags which I popped off of the plug and glued to a rock. They encrusted nicely and grew to about the size of a small orange. I've had smaller SPS pieces do the same thing but it's not all happening at once. With the smaller pieces I was able to frag the good and they are doing just great. Today I fragged what I could from one of the small colonies in hopes they will survive. Generally, I'm having great success with the ones I frag but I'm frustrated as heck because I can't figure out why they frag awesomely, but the larger colonies sometimes die off. I've had one small frag begin to recede then reverse course over a 3 month period and heal itself almost down to the rock.
Parameters:
Calcium - generally 450-500
Alkalinity - 9-10
Magnesium - 1400-1450
The nasties are undetectable an PH is fine 8-8.3 depending on the time of day
Anyone?
Basically I have 2 small colonies that started out as 1" frags which I popped off of the plug and glued to a rock. They encrusted nicely and grew to about the size of a small orange. I've had smaller SPS pieces do the same thing but it's not all happening at once. With the smaller pieces I was able to frag the good and they are doing just great. Today I fragged what I could from one of the small colonies in hopes they will survive. Generally, I'm having great success with the ones I frag but I'm frustrated as heck because I can't figure out why they frag awesomely, but the larger colonies sometimes die off. I've had one small frag begin to recede then reverse course over a 3 month period and heal itself almost down to the rock.
Parameters:
Calcium - generally 450-500
Alkalinity - 9-10
Magnesium - 1400-1450
The nasties are undetectable an PH is fine 8-8.3 depending on the time of day
Anyone?