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I already did figure it out. Just kidding. Well....Should have reread the first post, recently acquired sps frags.. Chas is on to something...I hope you two can figure this out
It's probably just a type of coraline or maybe even a colored type of sponge. If it doesn't blow away from a Turkey baster or powerhead, then don't worry about it (which would indicate cyano or some type of turf algae). I've had similar growths on my live rock over the years, although the basic light purple coraline seems to win out and dominate the rock structure over timeOn a side note, is that red algae on the rocks just a different kind of coralline, or something different? It does not blow off.
I really appreciate the time you took to reply! Thank you!
I am in the process of adding new powerheads (today). After they are added, my turnover should be in the 50x-60x range. It's about 30-40x now.
For reference, the SPS are placed 9" under the water line directly under the center fixture. Ideally, I would have more light, but I tried to choose some SPS that others have had luck with in lower par. I have also done quite a bit more research on these lights (a lot of which I had already read when I was setting them up) and my approximations are right in line with what others have found with a par meter.
As of today, the red planet seems about the same, but the Joe the Coral is looking worse. There is more tissue recession on the tips and it is starting to grow some brown algae on the tips. Should I go ahead and frag the tips?
I don't doubt the flame angel may occasionally nip some of them, but no more than I have seem my tangs "nip" at them. That may explain the polyp extension issue, and otherwise, my red cap and digitata seem healthy. The stylo also seems more or less ok.
Here are some pictures I took after lights out, hopefully you can see the condition a little better.
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I went ahead and changed my carbon out a few days early. I have not done any water changes or dosed anything in the last few days. I plan to start dosing 2 part again today as the levels should be right where I want them now.
Also worth pointing out, when I would dose my alk at night, the powerheads would blow the "white alk cloud" directly over all the sps before dissolving fully. Any way that could have caused issues?
Here’s my joe the coral![]()
Uhhhh, besides the fact that the alkalinity on corals reefs is below 7??? I like lower alk because I’ve learned it gives me a larger margin of error if my nutrients drop, which happens all the time because my acros are growing so fast. Also, because I killed $10,000 worth of acros when my alk was above 8 and I’ve killed zero since I’ve dropped it below 8. I don’t believe acros grow faster with higher alk, especially considering the mortality rate associated with it. I’ve had many discussions with acro collectors and farmers and they all try to keep their alk below 8.Why does everyone swear by low alk? Red Sea Coral Pro is 10.5 alk and I know many people who have success growing acros with it, me not being one of them I suffer from the same issue as the OP lol. But why does high alk and low nutrient work just fine for some people?
I’m not the OP with the problems. I was showing what a healthy Joe the Coral looks like.Don’t do anything to him... he looks fine!!!
Why? Because corals are very adaptable and can thrive in a wide range of environments.Why does everyone swear by low alk? Red Sea Coral Pro is 10.5 alk and I know many people who have success growing acros with it, me not being one of them I suffer from the same issue as the OP lol. But why does high alk and low nutrient work just fine for some people?
What salt would you recommend then that isn’t a fortune like tropic Marin ?Why? Because corals are very adaptable and can thrive in a wide range of environments.
I choose to run my alk around 8.0 dkh, as that is closer to NSW levels. Plus, my salt mixes up to lower alk levels, so it's just easier when doing water changes.
Elevated alk / calcium levels can increase calcification, but I find a lower alk is just more forgiving where I don't have to stress quite as much about my light and nutrient levels.
Jason Fox uses Instant Ocean. I use tropic Marin pro but a lot of collectors and farmers use instant ocean or Red Sea blue bucket, but a lot of them use muriatic acid or an air stone to drop the alk below 8.What salt would you recommend then that isn’t a fortune like tropic Marin ?
@Chaswood79 gave you some good recommendations. You can do a search in the forum for salt mixes. There's probably more pages you'd care to read on the "best" salt mix. I think we may be derailing the OP thread a bitWhat salt would you recommend then that isn’t a fortune like tropic Marin ?
Agreed, but the OP hasn’t chimed in awhile, so our acro a,d,d kicked in.@Chaswood79 gave you some good recommendations. You can do a search in the forum for salt mixes. There's probably more pages you'd care to read on the "best" salt mix. I think we may be derailing the OP thread a bit
They’ll probably be mushy and soft.
@PDR I think your corals look okay for the most part. You definitely have experienced some burnt tips on some and have algae growing on those ends, but this isn't like you have RTN goung on with your sps. Honestly, I don't know what the protocol is with burnt tips. I've had some pieces I've trimmed the tips off and just let them regrow, and I've had other times I just kind of ignore it (but I might brush the algae off). Some corals are just fast growers and the tissue doesn't quite seem to keep up with the skeleton growth or you might have had a combination of factors that led to the tips getting burnt. I was at a buddy's house the other day and he had a large tabling acro and you could see white tips all on the outer part of the coral, but in his case it was definitely growth.
As far as coloration, I'm not sure I can offer much help there. I'm not nearly experienced enough with sps to feel that adept at offering suggestions regarding getting optimal cokoration. I do know that frags sometimes can take a long time to really color up when introduced to a tank. Also, I've had small frags that didn't really start to color up until they got much larger. Obviously, nutrients and light can play a factor. I have a Christmas Mirabilis acro in my tank that I made a frag of and gave to a buddy a few weeks ago. I was over at his house and didn't even recognize the coral. It looked very different in his tank than it does mine. I guess I don't worry about the corals colors as long as the coral looks healthy. In general, pale colors make me think there is too much light and / or not enough nutrients. Brown corals I tend to think there is too much phosphate (this assumes you have a known coral that isn't just an ugly brown coral). But I am not that experienced with trying to fine tune corals colors, so I would not rely on my experience in this area!
As far as dosing, how much alk are you dosing at once? My tank uses almost 1 dkh of alk a day and used to use as much as double that. I can't imagine dumping alk all in at once if you are using similar amounts. I doubt think the alk white cloud passing over the coral is ideal but as you have a lot of flow, I'm sure it disperses it quickly (still best to dose in your sump), but I'm more concerned about the overall alk spike amount.
So I just looked up the specs of your light and it’s only produces 40 watts at max power. I can almost guarantee you that your acros are starving from a lack of photo synthesis. I bet they are receiving less than 100 par 9” below the surface.
That's a yellow card, followed by a red.
I doubt that stability would look like alk clouds blowing across your acros, and I do think that could cause them stress. I would aim your powerheads more towards the surface of the tank. A current blast directly at a coral can easily cause them to retract their polyps. That kind of current is what happens in storms surges and the corals tuck their wavey parts away when the waves threaten to rip them off. Ok, I might be a little dramatic, but your retracted corals look like they are in too much direct powerhead current to me.
And additives (Ca & Alk, Mg, etc) generally need to be well dissolved and gently & slowly added into the tank to avoid chemical burns to the corals' delicate flesh. (Those clouds are probably like taking a handful of table salt and rubbing it in your eyes.)
The light; you need a meter to measure that. Guessing if it is low or high is betting red or black on a roulette table. Some of the published info may help you beat the odds, but it doesn't give you the PAR that your corals are receiving.
Corals need good current, good light, and great water quality all at the same time to thrive. I trust you will find the sweet spot with time and effort. Godspeed.
Uhhhh, besides the fact that the alkalinity on corals reefs is below 7??? I like lower alk because I’ve learned it gives me a larger margin of error if my nutrients drop, which happens all the time because my acros are growing so fast. Also, because I killed $10,000 worth of acros when my alk was above 8 and I’ve killed zero since I’ve dropped it below 8. I don’t believe acros grow faster with higher alk, especially considering the mortality rate associated with it. I’ve had many discussions with acro collectors and farmers and they all try to keep their alk below 8.
I said “many” farmers and collectors. Not all. You’re also referring to 900, 750, 450 etc gallon systems all fed via calcium reactors.
510 model so there’s no conversion required for led.I have 2 hydra 52 HD’s over a 50 gallon cube
This is a 10” depth measurement with both set to 40 watts, or 80 watts total
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Here’s another one at 20 watts each or 40 total
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A lot larger margin of error on tanks those sizes, plus they run their nitrates at 20-25 and po4 around 0.10.No need to be defensive, I was just pointing out that they have been successful with alk above 8.0, that's all. I'm not sure I understand the difference a calcium reactor and larger water volume makes on the overall alk level?
I wasn’t trying to sound defensive, just trying to shed light on variables that don’t apply to the common reefer with a 30-150 gallon tank. We don’t have a full staff of employees testing, changing filter pads, feeding every hour, etc. And the majority of us don’t have self cleaning skimmer heads, 12 xr30 pros with T5’s and 100 established colonies. So yes, you’re right, 8.5 alk can and does work for some, but for me it doesn’t. If wwc was asking me why their Joe the coral was stressed, I would just shrug and say “ shouldnt you know that?” But your title said “sps noob needs help” so I thought I would share my failures, which sound similar to what you’re going through, and what I did to reverse those failures into success’s. We’re all just trying to help. I hope your little one feels better soon.No need to be defensive, I was just pointing out that they have been successful with alk above 8.0, that's all. I'm not sure I understand the difference a calcium reactor and larger water volume makes on the overall alk level?

