Acans and GSP not opening up

[Scaggs1117]

What’s up guys, so I had a bad algae bloom in the past that killed off a lot of coral, tank had been good. Just a lot of the red cyanobacteria on the sand and rock work that I have to blow off every couple of days . Par near the Acans is about 85-90. My Acans and GSP have not been open in a couple of weeks, they still have the color but no signs of gsp or blossoming Acans… I know some of my parameters are skewed but basically I’m asking which ones need to be fixed. Any help would be appreciated, thanks!
Parameters :
Nitrate - 1.5ppm
Phosphate - .13ppm
Alkalinity - 15.4 dKH
Magnesium - 1315ppm
Calcium - 482ppm
pH - 7.08

 

[Scaggs1117]

What’s up guys, so I had a bad algae bloom in the past that killed off a lot of coral, tank had been good. Just a lot of the red cyanobacteria on the sand and rock work that I have to blow off every couple of days . Par near the Acans is about 85-90. My Acans and GSP have not been open in a couple of weeks, they still have the color but no signs of gsp or blossoming Acans… I know some of my parameters are skewed but basically I’m asking which ones need to be fixed. Any help would be appreciated, thanks!
Parameters :
Nitrate - 1.5ppm
Phosphate - .13ppm
Alkalinity - 15.4 dKH
Magnesium - 1315ppm
Calcium - 482ppm
pH - 7.08

Salinity is 1.025 and temp is 78

 

[crazyfishmom]

Alkalinity is extremely high. Could it be test error? Alkalinity should be maintained between 7-10 for anyone who is not an expert.

Your nitrates are also on the low side.

Your pH is very low. pH should be between 7.8-8.3.

 

[Scaggs1117]

Alkalinity is extremely high. Could it be test error? Alkalinity should be maintained between 7-10 for anyone who is not an expert.

Your nitrates are also on the low side.

Your pH is very low. pH should be between 7.8-8.3.

Not a testing error just did it again, on the Hanna checker..nitrates I could dose and ph I could dose with marine grade sodium bicarbonate but how do I lower alk?

 

[crazyfishmom]

Not a testing error just did it again, on the Hanna checker..nitrates I could dose and ph I could dose with marine grade sodium bicarbonate but how do I lower alk

Please don’t try to raise pH with sodium bicarbonate. Your alkalinity will also go up making the problem worse.

In my opinion you need a very large water change. What does your salt mix typically mix to?

I would do a 50% water change with a low alkalinity salt mix. It would probably get you to around 10 dkh or so and also stabilize pH and then you can dose nitrate.

 

[Scaggs1117]

Please don’t try to raise pH with sodium bicarbonate. Your alkalinity will also go up making the problem worse.

In my opinion you need a very large water change. What does your salt mix typically mix to?

I would do a 50% water change with a low alkalinity salt mix. It would probably get you to around 10 dkh or so and also stabilize pH and then you can dose nitrate.

Ahh okk that would make a lot of sense

 

[WalkerLovesTheOcean]

Great advice above. Fix your alk, pH, and nitrates and you should be good to go. Your lighting is on point, too.

 

[Mr. Mojo Rising]

How is the flow in the tank? Cyano loves low flow area's.

 

[Scaggs1117]

Great advice above. Fix your alk, pH, and nitrates and you should be good to go. Your lighting is on point, too.

Thank you

 

[Scaggs1117]

How is the flow in the tank? Cyano loves low flow area's.

Flow is pretty good, it’s a 29gal long with a gyre 2k on the right side, I have it on random with a max ramp up of 70% ..I was thinking about putting a another angled powerhead on the other side to hit the inside of the rock work on the right

 

[Mr. Mojo Rising]

How long have you had the corals? Were they opened up before?

 

[Scaggs1117]

These corals about a month or two, yes they were in the beginning

 

[Mr. Mojo Rising]

Bumping for you for more idea's.