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Old 07/19/2015, 01:02 PM   #1301
Dfee
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So what are we thinking they do to the coralline? Alk and calcium good, coralline no good. Can Dino's give false reading on our tests or are they directly stopping the growth and turning it white?


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Old 07/19/2015, 02:50 PM   #1302
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if the dinos are covering the coraline algae then it could be a light issue, even if a small layer it could be blocking or filtering out some light.


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Old 07/19/2015, 02:51 PM   #1303
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Doesn't seem to be touching it at all


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Old 07/19/2015, 02:59 PM   #1304
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I thought it was a common thing for people to notice a change in coralline when Dino's popped up


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Old 07/19/2015, 03:05 PM   #1305
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My coraline receded quite a bit while I was battling and has come back quite nicely now in only a few weeks, I noticed a brown film on the rocks, barely noticeable, and it wouldn't blow off with the baster that could have blocked some light. Could be a toxin thing as well.


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Old 07/19/2015, 03:26 PM   #1306
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I thought it was a common thing for people to notice a change in coralline when Dino's popped up
Mine's definitely receding. Lots of odd gray spots on the rock where it was.


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Old 07/19/2015, 05:43 PM   #1307
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I'm sure Salifert is not consistent as the kit ages.
Below is from this thread.. http://www.reefcentral.com/forums/sh....php?t=2273650

14 months have passed and today I got 3 new Salifert test kits.

The old calcum test kit gave a reading at 340
The new calcum test kit gave a reading at 375

The old alkalinity test kit gave a reading at 5,7
The new alkalinity test kit gave a reading at 5,7

The old magnesium test kit gave a reading at 1185
The new magnesium test kit gave a reading at 1350


There is a tendency for the calcium kit to drop as it gets older.
Three comparisons have revealed 40, 20 and 35 lower numbers in the older kits.
The kit that showed higher value the year before will become the lower next year.

Alkalinity stayed at 5,7.

Magnesium I'd say is more correct for the old kit compared to my Ca and Alk levels.


---

This issue with my low calcium readings and the massive amounts of added calcium without any coral growth is a side effect from the dinoflagellates combined with the Saliferts kit inconsistency over time.

For a very long time I had white coraline coverage on all well lit areas and purple everywhere else.
For the last few months everything has turned purple like it's meant to be.

I've had a derasa clam for more than a year. It seems to be healthy, but I can't tell if it has grown at all.


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Old 07/19/2015, 05:50 PM   #1308
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Mine's definitely receding. Lots of odd gray spots on the rock where it was.
I've had plenty of dead corals from "bleaching" to tell you the coraline is not dead yet.
The coral would turn light gray and could stay that way for months. Most reefers would think it dead and throw it away. When the coral finally dies it would turn bright white.


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Old 07/19/2015, 06:00 PM   #1309
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if the dinos are covering the coraline algae then it could be a light issue, even if a small layer it could be blocking or filtering out some light.
In my tank coraline repels dinos.


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Old 07/19/2015, 09:06 PM   #1310
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In my tank coraline repels dinos.
In my tank I noticed that the brown film that was growing on my glass was also on the rocks and coraline, and when I swabbed it and put it under the scope they were the same, about 90% diatoms and 10% dinos and I couldn't blow it off but I could wipe it off.
This was after I removed the sand bed, before it was probably mostly on the sand.


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Old 07/19/2015, 09:25 PM   #1311
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is dinoflagellates or cyno????

is this dinos or something else? to be clear…i don't see long strings or air bubbles and this is mostly on the sand. although i have seen some spots of the ruby red stuff on a few rocks. i can blow it off with the power head. also, if i use a power head on the stuff on the sand, it will roll up like its one piece…almost like a mat….


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Old 07/20/2015, 03:15 AM   #1312
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You got both.
Purple Cyanobacteria and brown dinoflagellates.


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Old 07/20/2015, 03:17 AM   #1313
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Doing a simple Google search using "cyanobacteria in a reef tank" reveals that the most common cause for cyanobacteria in reef tanks is dinos.

A lot of diatom pictures seem to be dinos as well.

Does anyone have a solid way to eyeball diatom mats from dino mats on the sandbed.

A microscope would be the best way and there could be a mix at any ratio of the two.
If fish are eating the stuff and staying alive it's sure to be diatoms.
Not to forget that diatoms stay for the night.



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Old 07/20/2015, 08:57 AM   #1314
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Does anyone have a solid way to eyeball diatom mats from dino mats on the sandbed.

A microscope would be the best way and there could be a mix at any ratio of the two.
If fish are eating the stuff and staying alive it's sure to be diatoms.
Not to forget that diatoms stay for the night.
Those are the same ways I try to tell from simply eyeballing brown algae. If it stays overnight and if the fish eat it it's probably diatoms. I've also had a little bit of luck blowing some brown algae over a small area on the sand or on power heads with my flow shut off completely to see if the brown algae form snotty strings in the calm water. If they do it's dinos.

And then obviously the bubbles can mean either cyano or dinos. I think that comparison is a little harder to make because it can also be both dino with cyano. However, my cyano mats have been a lot thicker than when I had a bad dino bloom.


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Old 07/20/2015, 10:10 AM   #1315
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I was more thinking of a fast id from a decent picture.

The reefing community is oblivious to what dinos can do to reef tanks.
Reefers keep struggling and don't get it why their corals don't thrive.
Cyano and diatom problems are much more common than dino problems, but are they just that?

It does not take a big dino bloom to do havoc, a few patches here and there can make the SPS experience miserable.
We are not doing enough about it. It will take more than a hobbyist from Iceland to get the blue whale in the lagoon out of there.


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Old 07/20/2015, 10:35 AM   #1316
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When I was fighting dinos two years ago in our propagation systems, the Ca and Alk were wonky. Couldn't add enough Ca to budge it. We were dosing up to 10 gal a day of kalkwasser into a 400 gal system and couldn't budge Ca from 320 or so. We weren't sure if something was consuming it at an enormous rate or something was affecting the test results. Test kits were typically API with Salifert tests run and a professional lab analysis to confirm. There was no precipitation.


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With fronds like these, who needs anemones?
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Old 07/20/2015, 12:34 PM   #1317
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Math man, yours looks identical to mine. I posted a pic on this thread. Post # 1267


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Old 07/20/2015, 01:10 PM   #1318
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Does anyone know if some dinos kill Shrimp or is it only snails?


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Old 07/20/2015, 01:18 PM   #1319
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Both times my Harlequin didn't die


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Old 07/20/2015, 01:22 PM   #1320
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Both times my Harlequin didn't die
Thanks ! Neither did my Peppermint and was wondering if that means my dinos weren't the toxic kind.


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Old 07/20/2015, 01:30 PM   #1321
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Didn't mean that. Lost fish and snails, but my harlequin survived. Also my maroon clowns have survived everything.


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Old 07/20/2015, 01:40 PM   #1322
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Does anyone know if some dinos kill Shrimp or is it only snails?
It probably depends-toxic species of dino, resistance of critter to toxins. I lost 2 sexy shrimp. I'd seen them picking at the dinos though.

ivy


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Old 07/20/2015, 01:53 PM   #1323
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I was more thinking of a fast id from a decent picture.

The reefing community is oblivious to what dinos can do to reef tanks.
Reefers keep struggling and don't get it why their corals don't thrive.
Cyano and diatom problems are much more common than dino problems, but are they just that?

It does not take a big dino bloom to do havoc, a few patches here and there can make the SPS experience miserable.
We are not doing enough about it. It will take more than a hobbyist from Iceland to get the blue whale in the lagoon out of there.
You're right of course, but it's so difficult to identify anything in a reef tank.. Brown gunk could be funny looking cyano, diatoms, dinos, chrysophytes, 'normal' brown macroalgae or an alien invasion. Or a combination of any of those. In fact it's probably more common to have 2 things than not.. Not to mention there's not a strong consensus on what actually works against the beggars.

Perhaps someone smart could make a simplified key? Does it kill your snails, go away at night, like light/flow etc etc

Ivy
Dinos Club never going to be as popular as Diners


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Old 07/20/2015, 02:26 PM   #1324
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tampasnooker,

interesting comment you made about the calcium. i have nearly the same issue....i can move my alk around with simple two part solution (soda ash) but calc will not move if i dose the same amount of calk...i have no SPS and only two LPS...good coraline algae growth though....wonder if there is a connection.??


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Old 07/20/2015, 02:47 PM   #1325
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Yet another bit of knowledge about this toxin is that it causes bone resorption, by breaking down bone and releasing the elements. Bones are mostly calcium and so are our corals.
This could play a part in the low calcium readings and coral growth problems.


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