HELP PLEASE Cyano outbreak and struggling coral with good parameters??

[smordi]

Hi ive had my tank up and running for about 3 months. I regularly check my parameters and all remain good however I am experiencing some issues. Despite my parameters I currently have a cyano breakout and some small tufts of green algae.
I also have a torch and a frogspawn that seem to be struggling, in the store they were both 2-3 times the size they are now and since adding them to my tank have opened up less and less by the day. Ive checked them both for worms and they are clean. I have also changed the flow and lighting several times.
I have an aqualumination blade light that I have set to grow lps according to a template from a you-tuber that seemed to be successful.


In the tank which is 16 gallons I have 2 clowns, 1 watchmen goby, 1 pistol shrimp, 1 torch, one frogspawn, 1 GSP, and one rock flower anemone. everything seems to be thriving except the torch, forgspawn and occasionally the GSP looks a little limp but its nothing Im worried about. My parameters I have measured as of today are

Ammonia: 0
Nitrite: 0
Nitrate: 0
PH: 8
Phosphate: 0-0.03
Magnesium: 1430
Salinity: 34-35

I do water changes once a week

I dont know what to do and I am BEGGING for any suggestions to get rid of the cyano as well as any suggestions about what may be the issue with my corals please!

 

[Formulator]

First - this is not bad at all so lets calm down LOL. Very common in a new tank.

2 suggestions:

1. your nitrate and phosphate should never be allowed to be zero. Those are nutrients your corals and bacteria need to grow. When they go to zero, you invite bad things to grow in the open real-estate of your rock work. You can raise them by increasing feeding or directly dosing with products like neonitro and neophos. Aim to maintain 10 ppm nitrate and 0.1 ppm phosphate.

2. Increase flow. This will discourage cyano.

 

[smordi]

First - this is not bad at all so lets calm down LOL. Very common in a new tank.

2 suggestions:

1. your nitrate and phosphate should never be allowed to be zero. Those are nutrients your corals and bacteria need to grow. When they go to zero, you invite bad things to grow in the open real-estate of your rock work. You can raise them by increasing feeding or directly dosing with products like neonitro and neophos. Aim to maintain 10 ppm nitrate and 0.1 ppm phosphate.

2. Increase flow. This will discourage cyano.

Thank you, funny enough I feed very little because I worry about spikes but I guess I went too far to the other extreme, Ill increase feeding and possibly try dosing. Do you think it will help to dose some type of bacteria starter or one that will out compete cyano to help clear that up or would that be overkill? People at LFS just werent very helpful and Ive been trying to figure this out for weeks so I felt like I was running out of options.

 

[jabberwock]

Thank you, funny enough I feed very little because I worry about spikes but I guess I went too far to the other extreme, Ill increase feeding and possibly try dosing. Do you think it will help to dose some type of bacteria starter or one that will out compete cyano to help clear that up or would that be overkill? People at LFS just werent very helpful and Ive been trying to figure this out for weeks so I felt like I was running out of options.

I wouldn't dose. Think years, not weeks...

 

[Formulator]

I wouldn’t dose any bacteria products. They will just lower your nutrients and you want them to go in the opposite direction. Increase the feeding and see how that goes with NO3 and PO4. In general I urge against any additives/supplements in new tanks, with the exception of nitrate. I don’t think dosing nitrate is off limits for new tanks because the consequences of having zero nitrates for any significant period is often dinoflagellates which can become so discouraging it often forces new folks out of the hobby.

 

[bossman818]

Increase flow. Cyano does not like it very much.

 

[smordi]

So I’ve been increasing feeding and I’ve also dosed neonitro and neophos and I have not seen and increase in nitrate or phosphate both remain zero. Additionally Cyno is still going crazy should I just continue to try to wait it out doing water changes, I do about 10-20% once a week