Is Grape Caulerpa toxic to sps?

[harmonyexotics]

Ive been having issues with pale sps for a few months now. My tank is around 6 months old, and all parameters are at acceptable levels for sps. The light is a Hydra 52 fixture mounted about 14" above the tank (standard 30 gallon).

I recently read something that said grape caulerpa is toxic to sps. How true is this? My fuge is full of it! Could this be causing the paleness im seeing? Also had one frag STN on me.

Params are as follows:
Cal 420
Alk 9
Mg 1350
Ph 8.3
NO3 0
PO4 undetectable on API
Salinity 1.025

thoughts?

 

[swhobbie1]

With your nitrate and phos at 0, how often do you feed the fish/corals?

 

[harmonyexotics]

5 small fish in this tank. Fed twice per day. I also dose Aquavitro Fuel for the corals. Ive been trying to raise the nitrate slightly so the corals dont starve...but it stays a constant zero on my api test.

 

[BrentH]

I have a ton of the grape in my system and my sps are flourishing just fine I don't believe its toxic to sps or see why it would be?

 

[buy_baff]

Get more fish and feed them.

 

[harmonyexotics]

Thanks guys Ill add one or two more fish and see what happens

 

[markalot]

Do you know what your PAR levels are? You can't judge LED brightness by visual brightness since the greens (the color our eyes are most sensitive too) are limited in LED lights. I might guess turning down the lights would color up the corals.

 

[harmonyexotics]

Someone else also suggested this. I had most colors up to 80%, ive recently turned them way down to see if things improve. I know it will take them time to recover, so basically its just a waiting game right now. Thanks!