bleaching sps

Healthy corals for 3 years...and then some of my best SPS bleached out in a week! What happened??? I did have one of 4 lights go out...no significant changes in water parameters or temp...Help!

I put several new corals in my 9 month old 65 Gallon tank 2 weeks ago. The softies, LPS, and one SPS (montipora) are doing well, but one acro is losing color and the other acro which arrived brown looks like it is bleaching at the base. Should I apply super glue? I'm worried it's too small to...

All right so here's my story!!! I recently purchased a PC Rainbow Acropora from @WWC and after leaving it in my 29 gallon for 24 hours I dipped it in Revive from 2 little fish and moved it to a recently established 10 gallon quarantine tank. I had used water from my old aquarium and some...

Hi fish people, I got this wwc green birdsnest a few months ago and about a month ago it started bleaching. Maybe six weeks at this point. This is my first coral that's started doing that so I was slow to react. I've lowered the light intensity and the time the lights are on. It's still slowly...

Hi Experts, I am new to hard corals.. got a monti recently.. started seeing some bright patches after a few days, no major changes to its plate colour... hope it is not bleaching. Here are some pics, Pic 1 - before (lights on when i took the pic). Pic 2 - now (pic taken with no lights). Here...

Starting yesterday one of my SPS's frag started turning White. Not sure what is going on. Below are my Parameters Changes I did recently Changed my Red Sea 90 and 50 whites to 50% for a week and now back to 10% based on this turning White My blues are 100% always Placement of the SPS was even...

I have just gotten a setosa at my local LFS, it is orangish and pink in white light. After around just over a week, it has begun to turn very slightly white, almost like a fine powdery pink look (was more orange than pink before). This color change is on the top half of the coral that is exposed...

Hello all, Recently my alkalinity rose from 8.5DKH to 9.5DKH seemingly overnight this morning i awoke to a lot of corals starting to bleach out and my LPS receding dramatically. Im not exactly sure how it rose so sharply when i did not change my dosing pumps amount but the guidance i am seeking...

Hey all, I figured I should come and ask the gurus and try to limit my hard knocks learning. This is one of my first SPS I have added and so I am totally new. I am not sure the cause or remedy, so am looking for some help. Plus this is my wife's favorite! So stakes are high needless to...

Ive been trying so hard to get my frag tank to merely (keep alive) not even asking to grow Acropora and nothing has lasted more then 10days except for 1 frag of pineapple juice acropora which "seems" to be growing, good color and polyp extension. ive seem to have a problem with over feeding...

Hello everyone, My first post. I am fairly new to the hubby. My tank has been up and running for 8 months. I have been wanting to enter the world of SPS. My bird nest have been doing great so I ventured to get one frag of the Blueberry Fields acro. I believe that it is suffering from STN. Any...

I'm scratching my head about an issue in my tank that's been going on for a while. My forrest fire digi is light pink-ish. It's lost the deep red it once had and I can't figure out why. Other pieces of acro and the general health of the tank seems fine and stable. The digi sticks out as the most...

Hi All, It seems I have an issue for the last 3 weeks. My birdnest and pocilopora are not doing so good. The green neon birdsnest started to loose flesh 3weeks ago and this week the pocilopora seems to have bleaching tips. Any idea where it can come from? The only thing I could have in mind is...