SunnyX
New member
<a href=showthread.php?s=&postid=15663679#post15663679 target=_blank>Originally posted</a> by maroun.c
Well deserved Sonny.
Need some help with a dilemma I'm facing in my tank.
most of my corals are doing good with great growth on montiporas, milleporas and over all good coloration and PE.
However the followings:
ORA green Birdnest
Green Birdnest
superman montipora
are all loosing colours. the birdnests are still showing good PE, the superman lost all of it's coloration and became cloe to white.
Lowered all of them as I was told this could be an increased lighting issue but no change except for little improvment in coloration of the superman.
My water tested as follows:
Temp 83 (hottest duing the day and going down to 80 at night)
Sal 1.026
PH 8.15
alk 9.3
Ca 370
MG 1260
PO4 0-0.03
No3 has rised from 20 ish to 30-35 in 1 month
DSB looks black from below and shows some airbubbles so starting to work
fuge only has 1 strain of caulerpa left as it wasn't thriving in my tank and I never had to prune in years.
I can't dose vodka as I'm rarely around to monitor and think it's a bit risky if not properly monitored.
Couldn't find MB7 so I got probidio biodigest and will start dosing it without a carbon source.
Checked and cleaned sump and fuge from settled detritus and got 4 buckets of very dirty water out of the system which I presume was par tof the nitrates.
I'm a bit confused with the fact that some corals are growing like crazy and have very good coloration and PE while others are looking really bad.
Lately the ORA green birdnest got some brown tips which I was told was due to alkalinity shift.
other corals that are loosing some color but still are opening really well:
- Fropspan opening like crazy but looks a bit faint in color.
- RBTA that bleached and lost most of it s volume months ago looks a bit better colorwise.
I try to feed my corals with the following on alternating basis and no more than 1-2 times a week when I'm not on travel:
Kent phytoplex
Kent Chromaplex
Kent Coral accel
Reefsnow
JBL Korall Fluid
Tropic Marin Pro coral Phyton
Tropic Marin Pro coral Zooton
Tropic Marin coral snow
in adiditon to target feeding with some fish foods soaked in chormaplex coral accel and kent coral accel (1-2 times a month)
Do you think it's OK to dose some Amino Acids (prodibio reef booster) after a couple of doses of bacteria?
Any hints if this fits more with a high light, low or high nutrient problem? any idea on how to better assess what's happening.
Thanks.
Hello,
Sorry I didn't get back to you sooner. Between work, school, coaching football, and Ramadan I have been stretched out all over the place. :eek2: :lol:
Are all of your green corals looking bad? I know in the past with my systems that increased water changes have brought about changes and increased coloration in my green corals, most likely due to an increase in Iron.
The first thing I always do when I am having an issue with my corals is stop dosing all nonessential additives. I then wait a week and look for signs of improvement. I then slowly begin to add back the additives one by one, using the process of elimination to determine what may be causing the problem.
Based on your high nitrates I would stay away from all organic additives for a while, such as the Reef Snow, Zooton, and Pyton you are dosing. The addition of biodigest should aid in the reduction of nutrients in your system, but keep an eye on things as it has been known to cause problems with established DSB's.
Concerning the AA, I would stay away from them until you have reached a ULNS level(Ultra Low Nutrient System). Too many people are adding AA's when they are not needed, and where a simple increasing in fish food would suffice.
Based on the information you have provided me, the only issues I see that may be a contributing factor to the corals stress are the NO3 and temperature. Even though the Ca is a little low it is fine. It is fine because you ALK level are elevated, and when ALK is elevated it can and will compensate for CA level as low as 280, for short time though.

Good luck, and please let me know how it works out for you. :thumbsup: