My bali slimer is getting worse.... PICS

[JDK]

Over the course of four months. About a month ago polyps retracted and have not come back out. Loss of polyp extension on a few others but not loss of color like the slimer. Slowed growth on all sps. I have narrowed it down to 3 possibilities. Tank specs below pics

1. Low Nutrients
2. Not enough light
3. Too much light

Any advice?

Four months ago



Today




A. Total water volume ( Please include sump, etc.)
29 Gallon Biocube (rimless)

B. What are your parameters? ( CA, ALK, PO4,Salinity, etc.)
ALK-8.5
CA-425
MG- 1300
NO3- <1 about .2-.5
PO4- .04 (Hanna Checker)
Salinity- 1.026

C. Type of lighting. Please include age, watts, and bulb/ballast name.
AI Nano Blue LED- 4.5 inches from water surface
Light comes on at 11 AM ramps up to 90% all 3 channels W/B/RB over 180 mins. It holds there for six hours then ramps down to moonlights for 180 mins. Just today turned the lights down to 75% to see if it helps the lightening of colors. However colors on other corals are very good.

D. Filtration method (Skimmer, GFO, DSB, etc.)
Aquamaxx HOB-1 Skimmer
BRS GFO in Reactor
BRS ROX carbon in bag place in InTank media basket
Chaeto in InTank media basket

E. What types of corals do you keep other than SPS?
Acans,Zoas,Palys,Shrooms, Cyphastrea

F. How long has the tank been running?
8 Months

G. What are you dosing? Dosing schedule?
BRS 2 Part Recipe 1
Bubble Magus Dosing pump both ALK and CA every two hours automatically spread an hour apart from one another.
MG every once and a while by hand
Every once in a while I will add some Salifert aminos and BA KoralColor
Also added some Dr Tims waste away the past couple weeks to help cyano on back wall (worked for me in the past)

H. Which brand of salt are you using?
Red Sea Coral Salt- NOT CORAL PRO SALT the regular Red Sea salt

I. What brand of test kits are you employing?
Salifert for everything except Phosphates which are checked with Hanna Green egg ULR checker phosporous checker then converted to phosphate.

J. What are you using for CA/ALK supplementation?
BRS Recipe 1

K. What are you using for flow? (Pump names, how many, placement, etc.)
Vortech MP10 on ReefCrest mode, Hydor EVO Nano 425. MP10 is on side of tank Koralia is on opposite side and blows behind rocks (just added the koralia this week) Plan on adding another Hydor nano 425 and placing it on opposite wall of MP10

[Kreeger1]

LEDs kill sps if not slowly acclimated to the light. Made the mistake myself

[purplereef]

Like Erik said I would dial down the intensity of the LED's or throw a screen over your tank.

[jformani]

Did you switch your lighting recently? Here's something that I just went through and noticed with my green slimer. I recently had a major crash in my display, was out of town and well I'll spare you the details. I quickly moved what was left of my sps to one of my frag tanks. Over a two month period the slimer got worse and worse. I decided to move back to my display (which I hadnt done a water change in probably two months because I was so disgusted with the crash). The slimer immediately started coming back and is now growing at an incredible rate compared to my frag tank. My frag tanks have very low nutrient levels, my display does not because I feed fish a lot and hadnt done a water change in some time.

Most sps like clean water but now I'm not necessarily sure about the green slimer???

[JDK]

Originally Posted by Kreeger1

LEDs kill sps if not slowly acclimated to the light. Made the mistake myself

I acclimated all the corals up top from 40% levels over the course of 2 months.

[JDK]

Originally Posted by purplereef

Like Erik said I would dial down the intensity of the LED's or throw a screen over your tank.

I have lowered the lights down to 75% from 90%. Maybe I will lower them a little more.

[JDK]

Originally Posted by jformani

Did you switch your lighting recently? Here's something that I just went through and noticed with my green slimer. I recently had a major crash in my display, was out of town and well I'll spare you the details. I quickly moved what was left of my sps to one of my frag tanks. Over a two month period the slimer got worse and worse. I decided to move back to my display (which I hadnt done a water change in probably two months because I was so disgusted with the crash). The slimer immediately started coming back and is now growing at an incredible rate compared to my frag tank. My frag tanks have very low nutrient levels, my display does not because I feed fish a lot and hadnt done a water change in some time.

Most sps like clean water but now I'm not necessarily sure about the green slimer???

I have always had this light since day one. Other acros are very well colored its just the slimer that is hurting color wise. Polyp extension has been reduced on almost all other acros. My blue mille the PE is non existent. I believe I have a low nutrient issue as well. I have started to feed more and will add a cpl drops of trace in the coming weeks. I think the high lighting is being compounded as a problem with the low nutrients. I took my gfo offline. Gonna skip a water change or two as well.