algae in a low no3&po4

[nmo0ory]

Hello,

i have a problem with some alage in my tank
i tested the no3 and po4 it was good and for no3 was to low
no3 : 0.2
po4 : 0.04

tank is running for over a year
this problem is with me for about 3 month but its not every were in some places
i add new frag tank to the same system and i had lot more alage on it
here is some photo of them
but how can i fix this problem what should i use ?

 

[DraggingTail]

Test kits must be junk

 

[Charles SONG]

Dinoflagellates, may caused by NO3 and PO4 both in a low level. Try to increase NO3 a little to see how it works.

 

[DraggingTail]

Dinoflagellates, may caused by NO3 and PO4 both in a low level. Try to increase NO3 a little to see how it works.

Did you see the GHA?

 

[Hemmdog]

I’ve heard bad things about the white eggcrate and this issue. I don’t know the specifics.

 

[Gary Inwood]

A good amount of CUC will help along with some tank maintenance

 

[Dan_P]

Hello,

i have a problem with some alage in my tank
i tested the no3 and po4 it was good and for no3 was to low
no3 : 0.2
po4 : 0.04

tank is running for over a year
this problem is with me for about 3 month but its not every were in some places
i add new frag tank to the same system and i had lot more alage on it
here is some photo of them
but how can i fix this problem what should i use ?

This is quite a mess! Having let things get out of control might complicate the clean up. If the coral frags are not doing well, they might be feeding everything growing round them.

First thing to do is get an expert opinion on the frags. Are they sick? Dying?

 

[nmo0ory]

Test kits must be junk

all is new test kits for no3 i try it on my friend and its same
po4 was 0.16 before i get it down to 0.02 - 0.04 with the new GFO i used

Dinoflagellates, may caused by NO3 and PO4 both in a low level. Try to increase NO3 a little to see how it works.

how can i increase it ?
i don't use any this to reduce it at all

A good amount of CUC will help along with some tank maintenance

what is CUC ?

This is quite a mess! Having let things get out of control might complicate the clean up. If the coral frags are not doing well, they might be feeding everything growing round them.

First thing to do is get an expert opinion on the frags. Are they sick? Dying?

i am cleaning the frag every time they are not doing great but they still alive
also i have about +200 new frags i made in about 4 days all had some algae on them