My hammer and frogspawn are dying?

[TheSheff]

I've attached a picture of my hammer and frogspawn corals. Could anyone explain what this is and what causes it? I'd assume it's my fault because the tank is relatively new. Both of the Euphyllia corals look like this

 

[damsels are not mean]

How do I know what the best lighting and flow are for the corals ? is there a way for me to visibly look at them and tell?

Corals are highly adaptable. The best light is one that stays the same every day. There may be optimal ranges but that could only be found by testing with several frags of the same colony under various lighting conditions over a long period of time.

 

[ADAM]

Lower the intensity of the white channels of your lighting. The brown spots seen on the tentacles in first pic are burnt tips which are likely from your lighting. The pictures added later in the thread show the tentacles looked to be healing over so hopefully you’re on the road to recovery. Torch, hammer, frog/octo will prefer a slightly more blue spectrum (14k-20k) as a rule of thumb.

If you can’t adjust the “whites” move the coral to an area that is not directly under the fixture.

 

[damsels are not mean]

Lower the intensity of the white channels of your lighting. The brown spots seen on the tentacles in first pic are burnt tips which are likely from your lighting. The pictures added later in the thread show the tentacles looked to be healing over so hopefully you’re on the road to recovery. Torch, hammer, frog/octo will prefer a slightly more blue spectrum (14k-20k) as a rule of thumb.

If you can’t adjust the “whites” move the coral to an area that is not directly under the fixture.

I don't think any coral really "prefers" a particular intensity or spectrum unless it's not getting enough to grow or getting too much to grow. Other than that they adapt. They may change colors or fluoresce differently, but we must not confuse our own preferences for certain colors with light preferences of the coral.

Anyways my tank is pretty white but my hammer has developed a subtle yellow fluorescence going down the tentacles that wasn't there before. It was just a standard green splatter under the much bluer lights at the store and this yellow has gotten more intense over time.

 

[ADAM]

I don't think any coral really "prefers" a particular intensity or spectrum unless it's not getting enough to grow or getting too much to grow. Other than that they adapt. They may change colors or fluoresce differently, but we must not confuse our own preferences for certain colors with light preferences of the coral.

Anyways my tank is pretty white but my hammer has developed a subtle yellow fluorescence going down the tentacles that wasn't there before. It was just a standard green splatter under the much bluer lights at the store and this yellow has gotten more intense over time.

Sure they can adapt over time. But in regards to the OP problem I’m pretty sure his burnt the tips due to lighting with the looks of the coral in the pics and the overall color of the pictures. However “overlighting” will be tied to nutrients so without some idea of the tank size and lighting used with what settings (PAR ultimately would be best), PO4, and NO3 from trusted test kits it’s hard to say with 100% accuracy in any situation. Nevertheless, looking at the burnt tips, what appears to be rapid flesh recession, and the newness of the system; I’ll bet you whatever you want that it was getting too much light when that type of stress/damage occurred based on the information given.

 

[Duncan62]

Corals are highly adaptable. The best light is one that stays the same every day. There may be optimal ranges but that could only be found by testing with several frags of the same colony under various lighting conditions over a long period of time.

Off topic but I had to tell you my big blue damsel has fallen in love with a percula clown. It's comical to watch. This damsel is definitely not mean. Lol

 

[Oceanl0v3r]

Interesting that no one commented on putting corals in a 1 month old tank…

 

[Dburr1014]

Interesting that no one commented on putting corals in a 1 month old tank…

Like in the very first reply?
I find it interesting nobody reads the threads before they post.

 

[TheSheff]

Like in the very first reply?
I find it interesting nobody reads the threads before they post.

lol. The entire issue was with the flow . I had put them in an area with wayyy too high flow and they did not like it but now they are thriving lol.

 

[Sharkbait19]

It seems like I’m a bit late to this thread, but this is precisely what my frogspawns and a few other lps looked like in response to chemical warfare from leather corals. I’ve experienced this multiple times, and the most telltale sign to me, which does appear in your first pic, is the extension of mesenterial filaments, which come out when a coral is hungry or, in this case, extremely stressed. The solution is simply to run multiple water changes to dilute the leather coral’s toxins and to run activated carbon immediately. Leathers tend to release these chemicals when they are stressed by something else, so make sure it is not near any stinging or encroaching corals, and be sure not to touch it too often or bother it. I started my tank with multiple leathers, which in hindsight was a huge mistake, as they grow rapidly and can cause a coral meltdown through chemical warfare. So from my experience, I would say that your leather coral is the likely cause of this scenario.

 

[Oceanl0v3r]

Like in the very first reply?
I find it interesting nobody reads the threads before they post.

? Maybe the tank is too new?? Maybe?!?
But thanks for being a jerk

 

[Dburr1014]

? Maybe the tank is too new?? Maybe?!?
But thanks for being a jerk

This wasn't really directed to you personally and I'm sorry you took it that way. But I see this a lot. There were more posts in this thread that also said the same thing and I also said it. Tank is probably new for such coral.
There is a lot of people that post after reading the OP's post and not even bothering to read other replies. This makes the OP to have to repeat themselves or make the thread very redundant.
Again, sorry for making you feel bad. Not my intention.