Whats is happening to my sps

[A.G]

Hey,

I have this very very odd thing happening to my sps. It started at the same time when I tried bio pellets which I took off later on.

Here is a good photo you can notice that some areas look like burned but the flesh is there. No polyps



Here is another photo of my efflo



These weird looking areas seem affected but are not dead. I thought about AEFW but you can see it on the monti

Any new coral that is added "after" the bio pellets is removed does not have this weird flesh ??!!

The affected coral are growing. The growth on the lest side of the monti is all new.

Any idea?

 

[Moser]

I wonder if you stripped nutrients too fast with the pellets.

If the pellets are off the tank now, just keep everything stable… it should come back unless any corals are too far gone…. doesn't look to be the case.

AEFW don't do that to corals.

A sudden change in lighting can do that as well, and if you haven't run carbon before and add too much, that can do it.

Mo

 

[A.G]

Thanks Moser,

I dont thank I stripped the water to fast with pellets as I had algea growing all over and corals were browoning, am pretty sure I did not give the pellets enough time to kick in.

I have been using ROX 0.8 carbon for a while and I have changed the way am using it recently. I used to do 3 tbspn per month and now I do 1 tbsp per week ( less more frequent) I am starting to wonder if I am using to much....Thats really interesting.

I am also using HC GFO (10 ml changed weekly ) .

I will decrease the amount of GAC and see what happens.

 

[jda]

Algae growth is no indication of high, or low, nutrient levels. It is a indication of consumers of the algae. If you can grow coral, then you have enough nutrients to grow algae. Even disgustingly dirty tanks can have no algae with enough snails and stuff.

I also think that you stripped the water too low of nutrients and, in turn, your alk was too high. Do you have N and P test results from a good test kit?

 

[likefish]

i have seen the same problem in my tank when my alk has slipped low too quickly. I have high consumption and dose my tank with a kalk drip at 3 tsp a day. If i miss a top off on my kalk container my alk dropps fast!

my montis are my indicator coral for alk drops

 

[A.G]

I am using Hanna and Salifert.

Alk was at 8.5 and currently reduced to 7.2 as I noticed one red dragon frag was suffering from burn tips.

No3 is undetectable.

I just replaced my phoneix 250w to Ushio 20k .I also reduced the weekly amount of GFO and GAC to one table spoon of each replaced weekly ( I noticed my LPS do better this way)

Other than that I cant think of anything else.

 

[xxvietxjustinxx]

I am using Hanna and Salifert.

Alk was at 8.5 and currently reduced to 7.2 as I noticed one red dragon frag was suffering from burn tips.

No3 is undetectable.

I just replaced my phoneix 250w to Ushio 20k .I also reduced the weekly amount of GFO and GAC to one table spoon of each replaced weekly ( I noticed my LPS do better this way)

Other than that I cant think of anything else.

They're bleaching. Increase the height of your light. Cut down on how often you change your GFO/GAC

 

[leveldrummer]

I would say thats very light bleaching. I see that sometimes in my montis too with alk swings. Some might not consider it bleaching per se. but its definitely related to parameter swings.