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Old 02/21/2018, 06:02 AM   #1
RicGio
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Could Nitrates be my issue?

Hi guys,
I'm having a tough time keeping some types of inverts. I had a BTA that seemed to slowly waste away over the course of a months. It was very healthy and moved around a lot. I tried to feed it, but would never eat. Nitrates are the only parameter out of tolerance. I have no algae problems.

I also lost 2 frogspawns and a Monty cap die, but I think I "bleached" these with too much lighting.

Parameters below:

Nitrates 4
PO4 0-.01
Alk 8.4-8.9
Calcium 420
Magnesium 1280

Thoughts?


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Old 02/21/2018, 07:08 AM   #2
mcgyvr
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Absolutely not..
There is nothing wrong with nitrates of 4..


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Old 02/21/2018, 08:17 AM   #3
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How do you monitor salinity? Is temperature stable? How much light and flow are present? Do you carbon dose or use GFO to manage nutrients?


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Current Tank Info: In-process, 90 Gallon SPS Reef
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Old 02/21/2018, 11:36 AM   #4
RicGio
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Quote:
Originally Posted by reefgeezer View Post
How do you monitor salinity? Is temperature stable? How much light and flow are present? Do you carbon dose or use GFO to manage nutrients?
Refractometer 1.025
Temp 75-77
(2) 165 w "Chinese black box" led's set at 30% blue 12% white (10 hour ramping photoperiod)
Flow is moderate, gyre 250 at 35%
do NOT carbon dose, but considering Vodka
BRS bulk GFO
Refugium w/cheato and calaurpa


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Old 02/21/2018, 11:47 AM   #5
Uncle99
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Liked stated, 4 nitrate is no issue I run 10 but have a ton of corals.
You could also investigate the opposite, not enough light since you run your CBB's at on 30 blue.....I am running at 70 blue, blue is all that corals need.
Most corals derive 60-75% of their food through photosynethis of its zooa, so maybe they starve over time?

Feeding BTA's is not a requirement, although fun in a sense....if you do, only once or twice a month and no more than a fingernail size piece...again this animal likes what it likes and can move to the best place for its needs....and maybe not where we would like them....


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Old 02/21/2018, 12:10 PM   #6
reefgeezer
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Quote:
Originally Posted by RicGio View Post
Refractometer 1.025
Temp 75-77
(2) 165 w "Chinese black box" led's set at 30% blue 12% white (10 hour ramping photoperiod)
Flow is moderate, gyre 250 at 35%
do NOT carbon dose, but considering Vodka
BRS bulk GFO
Refugium w/cheato and calaurpa
I don't know the PAR readings you are getting, but I agree 30% & 12% sounds low. Ramping those lights on a 10 hour cycle also reduces overall PAR. Was the Nem consistently moving toward the light?

I don't see any reason to carbon dose (vodka) as nitrate & phosphate are pretty low. What happens to your phosphate level when not using GFO?


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Old 02/21/2018, 12:21 PM   #7
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Quote:
Originally Posted by reefgeezer View Post
What happens to your phosphate level when not using GFO?
yep... GFO is supposed to be used in response to a phosphate problem that you can't solve via other means.. If you have one fine.. your phosphate IMO is too low now..
GFO is quite powerful and can can strip beneficial nutrients out of the water and do more harm than good..

For some reason many new reefers thing they must run it to have a successful tank..

I'm not saying thats the reason you are having problems though..


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Old 02/21/2018, 12:26 PM   #8
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Did you state the size/dimensions of your tank?
The lighting percentage should be relative to tank sizes..


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Old 02/21/2018, 01:14 PM   #9
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90 gallon Lights are hung about 10" above waterline in the hood.

I was running GFO all the time, due to phosphates leeching from dead rock that I did not "cook". Not sure what it'll do if I stop using it.

Nem was moving around on 1 large rock. Sometimes up, sometimes down. Didn't really make sense to me LOL


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Old 02/21/2018, 01:28 PM   #10
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So you mentioned 1 BTA.. What else?
1 death does not make a trend to react to.. Sometimes animals are just sick and will die..


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Old 02/21/2018, 03:50 PM   #11
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How long has the tank been running? Nems require established tank, even if your parameters are good you need a good establish bacteria in your tank. Your lights are definitely too low, bump them up. Your N03 is fine. Your P04 is a bit low, if your rocks are leeching p04, you can always reduce the amount of GFO your running now. This way your still removing p04 from rocks but not enough to starve your tank. Also keep in mind stability in a reef is the most important part. No drastic changes.


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Old 02/21/2018, 04:16 PM   #12
reefgeezer
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Quote:
Originally Posted by RicGio View Post
90 gallon Lights are hung about 10" above waterline in the hood.

I was running GFO all the time, due to phosphates leeching from dead rock that I did not "cook". Not sure what it'll do if I stop using it.

Nem was moving around on 1 large rock. Sometimes up, sometimes down. Didn't really make sense to me LOL
I have 56X 3w Cree LEDs (2 fixtures w/28 each) on my 90 and they are about 12" off the water. They run at 100% unramped for 11 hours per day. I don't have a Nem but the Zoas at the bottom of the tank don't seem to mind.


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Old 02/21/2018, 06:05 PM   #13
RicGio
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Tank is 6 months old.

And here I thought zero phosphate was the target. 25 years around marine/reef tanks and still learning.


I'll start ramping the lights up a bit.


I also lost 2 frogspawn, a colt leather and a monty cap. All at separate times.


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Old 02/21/2018, 06:27 PM   #14
Pslreefer
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Your light levels are way too low. When I had a 90 I ran my mars aqua at about 90 blue 25 white. Even on my 180 with 4 of them 9 inches off the water I run 90/25 no ramping just on and off via a timer.


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Old 02/21/2018, 06:39 PM   #15
rvareef
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post a pic of the tank, my guess would be too much gfo, id take it offline or if you like using it try half of what you did last time


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Old 02/22/2018, 05:38 AM   #16
alton
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I agree with the others lighting too low, LPS loves a little pollution too


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Old 02/22/2018, 05:44 AM   #17
RicGio
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Thanks for the input guys. I'm going to take the reactor offline and monitor PO4 and slowly ramp up the lighting.


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Old 02/22/2018, 05:46 AM   #18
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Recent tank pic


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