bleaching

Hello, I’ve recently run into an issue in which my coralline algae is bleaching and I’m hoping to better understand why it may be happening. I’ve recently upgraded my lighting to an aquatop marine (days ago) from the “freshwater” aquatop light I had for a few months. I know I’m not having an...

Hey there, I've recently increased my tank pH and kH by using Soda Ash. I've noticed a significant drop in Calcium (from 500ppm to 155ppm). I understand that it's due to precipitation, but I don't fully understand why Strontium has dropped too... Despite being dosed, it went down to 2ppm while...

Hey, So I woke up today and saw that one of my frag looked like this, the rim of the corals are turning white, no where else at all just the rim near the top. Im guessing that its too much light but he's been in the same spot for close to a month now, and polyp extending great and all that...

Hey there - Receieved my bird’s nest coral one week ago. This and other SPS finished acclimating to light after 5 days and I put them higher in tank due to brownish color. Now, others seems fine but bird’s nest seems whiter than others. Should I lower in tank? Pic and parameters screenshot...

I have read a lot about it. Most say cyphastrea does not require strong light, and thus, I added my new cyphastrea to a little crevice where most of the light comes from reflections after a week at the bottom of the tank in a corner. BUT! lately, I have noticed that the parts of the coral...

https://amp.theguardian.com/environment/2022/may/10/devastating-90-of-reefs-surveyed-on-great-barrier-reef-affected-by-coral-bleaching-in-2022 Another mass bleaching event hit the GBR in 2022. “The surveys confirm a mass bleaching event, with coral bleaching observed at multiple reefs in all...

I got a $5 frag that the seller didn’t specify the colour of. I think it was not doing well in the sellers tank because it came in with algae covered tips. Well in the pictures it was brown and it did come in brown. After a while in my tank its now a lighter colour, don’t think it is dying...

Hi crap picture but may be able to see if you zoom in….. Is this bleaching ? Not sure new to corals. It’s like a dark purple patch

Hello everyone i am currently having issues with my lighting. I am unable to get a par meter because it is nor available where I'm from unless its over $2000. Well i have bleached everything i put on the highest part of my aquascape. Montis and a bali slimmer. Well i am tired of buying new...

I recently downgraded my tank and after a few months I've noticed that my red sea lettuce (?) has not colored up since the move. It appears to be slowly growing, but very pale. My dragons' breath algae is doing well and I've had it for less time. I assume the change may be because of the new...

Hi everyone, I observed something like bleaching but I am not sure if it is really a bleaching so your opinions are precious. Any suggestions for what to do in this case will be preciated. So, I have this frag for 2 months perhaps, for last 2 days i observed that it was loosingflesh partially...

I’ve had this tank for about 10 months it is a 20 gallon cube tank and recently I went into the world of sps. I’ve noticed that both of them are bleaching and I was wondering what I can do to reverse it?

New here, hello. I'm running a 150 gallon mixed reef with a 55 gallon sump. It's been up for 2 years but just started adding coral about a month ago. Running 36" dsuny leds and 6 t5's. Before I added coral I turned off the t5's and reduced intensity of the leds to 45%. This is what was added...

Hi all, not new here, but first thread start. I just noticed yesterday something I've dealt with before and so here is what I saw leading up to finding acro eating flatworms, how I identified the issue, and how I have intially dealt with it. The last few weeks I've noticed some of my acros...

hi my acropora started bleaching from the base, days ago I still saw some polyps and it still has coloration on the tips just the base started to bleach these are my parameters Calcium 560 Phosphates 0.30 Nitrate 0 Nitrite 0 pH 8 dkH 11 What is wrong and what can I do? I moved the acropora to...

Goodmorning, I just bought two lps on Sunday, a hammer and a chalice. It did well the it ate a pretty large amount of food on Monday, but on Tuesday i noticed two white spots on edge of the coral. I also noticed a hermit crab next to it but it was scavenging on the dry rocks. I observed it...

My elegance has white tips is this new growth or bleaching

i ended up adding a piece of my bubblegum digi to my tank last week as well as my sunfire grafted cap, and they started to bleach within a couple of days. I also started to notice my acros losing tissue on their tips within a couple of days after that. I immediately tested everything and my...

Hey guys so about a week ago I noticed that some of my monti cap as well as various acros are starting to bleach. I will attach photos to show what I would call bleaching... maybe I am wrong. 50 g frag tank , running 4 T5 metal halide, 2 kessil 160s , no protein skimmer just 40lbs love rock in...

I bought this red/orange montipora a week ago. Tank chemistry seems fine - no high phosphates or nitrates and no ammonia. Is it growing or bleaching?

Hello everyone, I have had my tank for 2 years and my montipora have been growing like crazy. Everything was perfect. Last week I noticed a gonipora was closed up so I decided to do a large water change. It's a 150 gallon tank. I usually do 30 gallon changes. I did a 75 gallon change...

Hey everyone, I have several questions currently about my tank. I'll post specs first before my questions/issues... Tank: Fluval Evo 13.5 gallon Lighting: stock light- 11000K LED. Very Very white light :(. I try to run my blue light from 0700-0-1000, and then full lights from 1000-1900 and then...

Hey everyone, I have several questions currently about my tank. I'll post specs first before my questions/issues... Tank: Fluval Evo 13.5 Lighting: stock light- 11000K LED. Very Very white light :(. I try to run my blue light from 0700-0-1000, and then full lights from 1000-1900 and then back to...

Hey guys, i had a tank crash last week because of a failed return pump. Whole tank went cloudy and i lost some corals, fish and inverts. The one coral that didnt make it was my whole colony of anthelia. 8x6 inch colony disintegrated into a smelly mush on the 3rd day of the crash. I only got it...

I got this Monti frag recently and when I came back from school it was turning white any ideas how to save it and what’s causing it