Green slimer lost color

[cubuffs]

I have an 8 gallon nano with a kessil 360 light turned way down. I have a green slimer frag that I acquired three weeks ago that was bright and beautiful. This morning, the frag is white with bright green polyps.

The parameters are great and all of the other corals are doing well also. What is causing my coral to lose its coral and die?

 

[Chaucer]

Probable bleaching

Probable bleaching

Hard to say for sure without seeing how you have that light set. I have one...on a 120, with my t5's, but I'm guessing you have way too much light for such a small tank size and the slimmer got bleached due to getting way more light than it was accustomed to.

 

[brad65ford]

how long the tank, 8g isn't easy to keep a Slimmer in unless you got the nutruentis down. What other corals do you have in your system and are they doing well.

Also a kessil 360 on a 8 gl .. im assuming its almost off on all channels? Lets see some pic's of your system.

 

[1MP3R1AL]

8 gallon? Wow...
When you say parameters are great, what does that mean?

 

[ShesEasy]

Just curious

Do you ever dose iron...Mine faded pretty bad when I got it....started with a low lighting and worked up but pale none the less....added iron sup....omg gorgeous green now

 

[brad65ford]

Just curious

Do you ever dose iron...Mine faded pretty bad when I got it....started with a low lighting and worked up but pale none the less....added iron sup....omg gorgeous green now

I think we are getting ahead of ourselves with this type of advice. Keeping slimmers aren't very difficult with just keeping the main 3 in check but 8g tank aint easy to do in with that type of coral imo.

 

[sahin]

Just curious

Do you ever dose iron...Mine faded pretty bad when I got it....started with a low lighting and worked up but pale none the less....added iron sup....omg gorgeous green now

This is what I need. Most of my coral colours are pretty good; but the green colouration in most of my corals is VERY lacking. Can you tell me which supplement you used? Thanks.

 

[ReefCowboy]

This is what I need. Most of my coral colours are pretty good; but the green colouration in most of my corals is VERY lacking. Can you tell me which supplement you used? Thanks.

Be careful dosing iron...it can start an algae breakout if not monitored correctly

 

[sahin]

Be careful dosing iron...it can start an algae breakout if not monitored correctly

Yeah, I did read about that, so I'm going to take it easy. In any event, I have about 50+ reproducing population of trochus snails in my tank.

Just want the greens to pop. :uzi:

 

[MarksReef]

Yeah, I did read about that, so I'm going to take it easy. In any event, I have about 50+ reproducing population of trochus snails in my tank.

Just want the greens to pop. :uzi:

Sahin
My Green colors are really lacking and I was thinking maybe iron too.
How did it work for you? What did you use?

 

[Reefvet]

Any tank that's receiving regular water changes of 10% a week unless very heavily populated with SPS will not need an iron supplement. Dosing iron separately is asking for a lot of other issues to show up and quickly.

An 8 gallon tank is hard to keep stable. Change a half gallon twice a week and dose nothing, you'll be adding in any AA or trace elements the corals could possibly deplete.

A green slimer is a very easy SPS to keep alive. They will grow quickly if Alk, Mag and Ca are at standard parameters. They like light but the coral may have come from a much lower light level and needs to acclimate.

If you've used Tech-M Mag that'll take the green out of a slimer in a hurry.

 

[Reefvet]

I have my MAG at 1800 for past 3 months using Tech-M and my slimer is radioactive green?

So you have some of the Tech-M that wouldn't kill bryopsis. It's lacking the contaminant that is present in some batches and the reason it kills bryopsis for some users.

I've used Tech-M for several years effectively killing bryopsis, but never in a tank with SPS or anemones. I dosed Tech-M into 2 separate systems in the last year to kill bryopsis, which it did.

In one system there were some dark green rock anemones. A day after dosing they were light green, I mean nearly white. I also dosed another system with SPS. A green slimer that was growing wonderfully lost all it's color between the corallites. A Tyree green acro turned nearly white.

Noting else had been changed in those systems except for adding Tech-M.

I did large, multiple water changes in both systems. 60% every other day for a week. The rock anemones, the slimer and the Tyree green acro have all regained their color.

The systems are highly controlled and all use NSW. I've been working in aquaculture research for nearly 30 years and I've been growing SPS for 25+ years.

I'm confident that Tech-M was the cause of the green slimer and the others loosing color.

 

[sahin]

Sahin
My Green colors are really lacking and I was thinking maybe iron too.
How did it work for you? What did you use?

Dosing Iron isn't work for me. Greens are still my worst colour. I have way better blue and red.

Not sure what else to do. :sad1:

 

[Reefvet]

Dosing Iron isn't work for me. Greens are still my worst colour. I have way better blue and red.

Not sure what else to do. :sad1:

What's your reference for green ?

You shouldn't need to dose anything for green. If you have stable parameters and good light, which reading your thread you clearly have, then the green you get should be normal.

 

[Reefvet]

Bryopsis died off so I guess I got the right tech m . And my slimer stayed green.

Or you just got Tech-M without the impurities and it was the high level of Mg all on it's own that worked for you.

I've raised my levels to 1800 with other common Mg sources and it killed bryopsis but didn't affect anything else.

 

[Reefvet]

Or you could be wrong and speculating like you were that tech m kills the green in slimers. :mixed:

Absolutely within the realm of possibility. But I did have the same thing happen 3 times in 3 different systems and the only variable was using Tech-M.

And FWIW, 99.9% of what you read on RC is speculation.

 

[Reefvet]

I would most definitely put the theory that techm causes sps to lose their green color in the speculation category as well. :d

So would I. I acknowledged that.

Here's the thing about my experience. I run very closed systems using NSW, no carbon or GFO, Apex controlled parameters for everything.

I've worked in Aquaculture reseach for 30+ years. You notice anomalies. That's why it's called research. Unfortunately we don't test for heavy metals, which is what I suspect it is/was in the Tech-M that affected my green slimer and anemones.

 

[sahin]

What's your reference for green ?

You shouldn't need to dose anything for green. If you have stable parameters and good light, which reading your thread you clearly have, then the green you get should be normal.

Several acros; green slimer, a couple of tenius looking acros which came mostly green with blue tips (green now faded, blue still present). Strawberry Shortcake etc.

Parameters test out fine; double checked with 2 sets of kits and I've calibrated refractometer for SG etc. I've been carrying out 15-20% water changes per week for past 4-5 weeks thinking its a trace element issue.

Nothing has worked so far.

However, what I have noticed is that the PO4 level has dropped this week. Was around 0.02ppm for past 4 months or so without the use of any GFO.

Yesterday I tested the PO4 and it just about tested 0.01ppm. Some corals have paled out slightly...which leads me to think I need to feed more.

What do you think? I'm open to suggestions from all.

PS I've checked for pests etc and have none (all acros go through Interceptor/dipping/QT).