help corals look dead

OK I have a 20 L , 20 g sump w/trickle filter bio balls, protien skimmer is a nano getting a bigger one soon. lights 65w coralife PC 50/50, coralife 2*24w actenic blue , refugium 5G w/ chetto in it and 3 LBS LR 4"LS.
12 Lbs LR , 2" LS, 3 100w heaters.
2 maroon clowns small , 1 coral banded shrimp, 1 turbo snail, 10 hermits mixed ( red scarlet, blue leg, white leg and ?)

ammo 0
nitrites 0
nitrates 0 -20 API reads 0 and jungle quick strips read 20
the jungle also read ph nitrites KH they seem good but I'm not sure about nitrates?? does anyone know about API test tube and card nitrate test?
PH 8.0
Phosphates .5 My problem ???????????
cal 450
mag 1350
stron - cant remember #s but it was good
iodine .02

my corals started to wilt
toadstool , green striped mushroom, anemone condy

my toadstool is not opening its polyps and is shrunken and wilted looking
and the mushrooms are falling apart except one I'm not sure it might be slower to suffer the same fate?
My Anemone is great and so are my fish and other inverts..
What is going on with my corals

No copper meds used ever
should I test for copper?
I did a 25% water change
not doing anything till I get help

 

How old is the tank? How old are the lights?

 

There is a form to copy and fill out at the beginning of the ASAP section. I need you to do that and then we can help you very quickly.

 

what is your temp reading...you have 3 100w heaters going in a 20L.... I know it is good to have a backup, but very easily one of the heaters can malfunction and overheat the tank. I have had both happen...one time heater overheated and luckily I caught it, and one time the heater failed to work and the fish was molting then and died!

Toadstools tend to do that...will close up and look nasty for a bit then open up.

Did you post over the weekend...were you the ones that the mushroom was spilling its guts? Is there any coral next to the mushrooms that are attacking it.

It sounds like something might be eating the mushrooms..but maroon clowns dont NORMALLY do that. Keep an eye on the mushrooms and see if anything is bothering them

What is your Specific Gravity?

 

Where are the placements of these corals?
Lighting shouldn't be an issue if your anemone is doing well, especially since Toadstools and mushrooms are not very fussy about light. Water flow may have something to do with them!
Keep monitoring them.

 

Unless I'm missing something it looks like he did. All the info seems to be there.

 

Hi, seems you only left out a couple of things; how old are your lights (PC need to be changed every 6 mos.) and you do not give an ALK reading. The Iodine should be .06

 

Answers

Ok my corals are between bottom and 3". Toad is 3" from bottom
And was about 4" tall now is 3" tall and bent over it does not
Change when lights are on. Mushrooms are on lr 3lbs and orange
Scroll is on my biggest piece of lr.
Temp is 80.1n-80.8day I use 3 heaters because of a failure took
My temp to 76.0f so I didn't want that drop again.
And my lighting is 65w 50/50pc 3 mo old and t5s are 2*24 w
Actenics are weeks old just replaced . Oh yeh the pc lights
Are 50/50 and the actenic side is more of a purple than blue
Why is that should I switch to 10k or full actenic on pc side
I was thinking of getting rid of them and going with t5s or
A 70w-150w mh I can get ballists really cheep but is that too much
Light for a 20l?
I am getting a 125l in a few mo so I am getting the mh ballists
Anyway I figure 2-3 of them need to mesure tank.
Oh yeh I dednt know how to fill out the form so I tried to
Memorize it ? Any help there would be great.

OH YEAH!!
My tank was started in the begining of JULY 2008..