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- Aug 9, 2019
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Hi,
A lot of my acroporas rtn from the base up.
I do not have a lot of acros only 6 pieces but four of them rtn.
My green slimmer rtned 2 months ago and another acro 1 month ago.
I both fragged them but have not ripped them and altought the rtn slowed it did not stop entirely.
Now 4 days ago another acro started to rtn and today yet another..
All other corals like lps, zoas, montis, stylos, sertioporas all do well and are growing.
My nitrates are always low like under 1ppm but not entirely 0.
I started dosing No3 1 month ago when the second acro started to rtn.
I raised it to about 1/2ppm
After testing this weekend I noticed there was a big air pocket in the air line
so No3 wasn't dosed for a few days.
I do not know if such a short time of low No3 can make acros rtn?
Seccond couse could be that I hooked up a new tank (1/3 of total water volume) with dry rock, dry sand and with a top layer of ocean direct sand to the main tank with the acros.
This could be a destabilizing event altough I did match all parameters including No3 and Po4 before I hooked it up.
The new tank (36 days old) already has growing coraline everywhere and olmost no algae and alot! of pods.
There are already a good bunch of corals in the new tank that all seem do do well.
I also bought 36 new coral frags 2 weeks ago 8x acro and they all do well.
Acros are on a frag rack at bottom side of tank.
Other corals are in the new tank.
All corals are diped in rx coral pro for 10 minutes.
The parameters I measure weekly did not significantly fluctuate during those 36 days.
The total system volume is 600l/158g.
My light consists of 3x radeon g5 pro ab+ 8 hr 85% with whit ramp up to 50% at its peak.
And 4xt5 blue plus, 2x for 6 hr and 2x for 3 hr.
Tank is 100x65x55cm/40x26x22inch.
Flow pumps are 2x jecod sow 8 at back pointed down to flush bottem (max 80%) and 2x jecod sow 16m at sides pointed diagonal over the tank (max 50%).
Got alot of both laminar and chaotic flow during the day.
I also dose:
8 ml acropower daily
5ml kz xtra daily
3 drup zeofood plus daily
5 drup KS vitalizer daily
3 drup ks sponge power every other day.
2x half teaspoon reef roids week.
4 cubes frozen food and a bunch of pellets daily.
I use Randy's recipe for macro elements and added fauna marin elements to it for some cheap trace elements.
I also add about 2l/0,53g of kalkwasser daily.
I do 7% auto waterchange weekly with tropic marin pro salt.
My parameters are:
Kh7,3
Ca 420
Mg1370
Ph 8-8.3
No3 2
Po4 0.05
Salinity 1.026
Temp 26c/79f
Does any one has a good idea what is going on?
Here some pics of rtn, old and new tank.
A lot of my acroporas rtn from the base up.
I do not have a lot of acros only 6 pieces but four of them rtn.
My green slimmer rtned 2 months ago and another acro 1 month ago.
I both fragged them but have not ripped them and altought the rtn slowed it did not stop entirely.
Now 4 days ago another acro started to rtn and today yet another..
All other corals like lps, zoas, montis, stylos, sertioporas all do well and are growing.
My nitrates are always low like under 1ppm but not entirely 0.
I started dosing No3 1 month ago when the second acro started to rtn.
I raised it to about 1/2ppm
After testing this weekend I noticed there was a big air pocket in the air line
so No3 wasn't dosed for a few days.
I do not know if such a short time of low No3 can make acros rtn?
Seccond couse could be that I hooked up a new tank (1/3 of total water volume) with dry rock, dry sand and with a top layer of ocean direct sand to the main tank with the acros.
This could be a destabilizing event altough I did match all parameters including No3 and Po4 before I hooked it up.
The new tank (36 days old) already has growing coraline everywhere and olmost no algae and alot! of pods.
There are already a good bunch of corals in the new tank that all seem do do well.
I also bought 36 new coral frags 2 weeks ago 8x acro and they all do well.
Acros are on a frag rack at bottom side of tank.
Other corals are in the new tank.
All corals are diped in rx coral pro for 10 minutes.
The parameters I measure weekly did not significantly fluctuate during those 36 days.
The total system volume is 600l/158g.
My light consists of 3x radeon g5 pro ab+ 8 hr 85% with whit ramp up to 50% at its peak.
And 4xt5 blue plus, 2x for 6 hr and 2x for 3 hr.
Tank is 100x65x55cm/40x26x22inch.
Flow pumps are 2x jecod sow 8 at back pointed down to flush bottem (max 80%) and 2x jecod sow 16m at sides pointed diagonal over the tank (max 50%).
Got alot of both laminar and chaotic flow during the day.
I also dose:
8 ml acropower daily
5ml kz xtra daily
3 drup zeofood plus daily
5 drup KS vitalizer daily
3 drup ks sponge power every other day.
2x half teaspoon reef roids week.
4 cubes frozen food and a bunch of pellets daily.
I use Randy's recipe for macro elements and added fauna marin elements to it for some cheap trace elements.
I also add about 2l/0,53g of kalkwasser daily.
I do 7% auto waterchange weekly with tropic marin pro salt.
My parameters are:
Kh7,3
Ca 420
Mg1370
Ph 8-8.3
No3 2
Po4 0.05
Salinity 1.026
Temp 26c/79f
Does any one has a good idea what is going on?
Here some pics of rtn, old and new tank.