Help Me Indentify My Coral...disease, Adaptation Or Wrong Parameter

[wijayah]

Help me indentify my bubble, frogspawn and doughnut coral.

are they disease, adaptation or wrong parameter

here info my tank (capacity 300g)

Calcium : 420-490 (salifert test kit)
Magnesium : 1300-1500 (salifert test kit)
NO2 : 0 (tetra)
NO3 : 5 - 20 ppm (sera)
Temperature: 24 - 27 c
Salinity: 1023 - 1025

lightning
MH CoralVue 20K 400w X2, BLV 20K 400w X1
3 x 40w Daylight

THANK YOU
http://reefcentral.com/gallery/data/500/97427frogspawn_coral.jpg http://reefcentral.com/gallery/data/500/97427bubble_green_coral.jpg http://reefcentral.com/gallery/data/500/97427bubble_coral.jpg http://reefcentral.com/gallery/data/500/97427doughnut_coral.jpg

[Bcollins111900]

Does not look good. How long have you had these corals for? If you just got them what is your acclimation process?

[RandyO]

You may be burning the corals with too much light.

They look stressed, and it can be from too much light.

We could use some more info about the tank, like size. Also, how long are you running the 400w halides?

[jessp]

agree to much light

[wijayah]

before i speak let me give you info for my job is maintenance aquarium same as randy maybe.
but i like my job because reef tank is my great hobby not just only money
i live in indonesia

sorry my speak english is not good

to bcollins:
my frogspawn, doughnut and bubble around 7-14 days but my bubble green maybe around 4 month

for acclimations i take that coral to medium light (in the middle aqr)

to randy
my tank length 225 cm, width 70 cm height 80 cm

i 'am running mh around 3 month

this day i test alkaline (sera test) and i have 5 dKH and ph 8.5(digital ph meter)

here picture my tank
http://reefcentral.com/gallery/data/500/97427300g_jay.jpg

[Sk8r]

You're obviously doing something right.

I'd estimate the light is too strong for these corals: bubble in particular likes low light. Try moving it to shadow.