HELP!

[bxwin]

I am new to salt water aquariums. So long story short, I bought some corals recently and set them in my tank last week. They seemed to be doing fine until yesterday. There seems to be a spider web/sponge like substance on my corals. It seems to be getting thicker and thicker. Corals don't open up often if they even open at all.

 

[3mm3]

Welcome to R2R!
How long has the tank been setup?
Have you tested alkalinity, magnesium and calcium?
What type of lighting do you have?

 

[bxwin]

The tank has been setup for several weeks now. I transferred over water, sand, and live rock from an aquarium that was already up and running. I am using an AI Prime HD. 25% UV I have not tested the alkalinity, magnesium, or calcium. I purchased one of the Salt water test kits and everything is 0 besides my nitrate level. It is at 40 but I bought nitrate reducer from instant ocean. I am trying to figure out what I did wrong.

 

[saltyfilmfolks]

Move them away from each other.
How old is the tank , yep.

 

[saltyfilmfolks]

Are you on rodi? What corals are they. The big one looks like an sps.

 

[bxwin]

Are you on rodi? What corals are they. The big one looks like an sps.

I have been using RO water as I get it from work.

 

[bxwin]

I believe it is a SPS.

 

[saltyfilmfolks]

I believe it is a SPS.

The other two?

 

[bxwin]

The guy at the aquarium told me they were some type of mushroom.

 

[saltyfilmfolks]

They look like leathers to me. Hard to say.
I'd suspect Chem warfare first , and separate them. Run some carbon in a bag on the return pump to help clear it up.

Are they in a good strong flow?

 

[saltyfilmfolks]

What nitrate reducer are you using.
And what salt?

 

[bxwin]

What is chem warfare.... lol sorry I am new here. Separate them as in a completely different tank? Yes I have a decent amount of flow going through the tank.

 

[bxwin]

What nitrate reducer are you using.
And what salt?

Nitrate reducer is called instant ocean natural nitrate reducer. My salt is from instant ocean - reef salt.

 

[saltyfilmfolks]

Ok. Well I'd guess Chem warfar first. That look like a piorites coral. The sps. Try to google it to confirm. Mine sheds too if it's mad. And they are pretty close.
That will take the Hughes flow you have in the bottom while they acclimate. If you have an ammonia yes maybe try it. I doubt is the issue but..

 

[DLHDesign]

What is chem warfare.... lol sorry I am new here.

No worries - welcome to R2R!
Corals don't have arms and can't really run away, so when two corals that don't get along (due to competition for resources, etc.) end up near each other for some reason, they "fight". This is often done be secreting chemicals that are damaging to other things (generally other corals). When you hear about anemones stinging fish, this is basically what's going on (they aren't aiming for the fish, but other corals).

Separate them as in a completely different tank?

Just move them apart in the tank they are in. Give them 3-4" - or more - if you can.

 

[bxwin]

Thanks guys for all the help! Much appreciated. The corals seem like they are doing better and better each day.