What is negative effect of high nitrate to SPS ?

[Chefri]

Dear Reefers,

What is negative effect of high nitrate to Acropora (SPS) ?

because my nitrate level is 50mg/l.

[lightningstrike]

IME, most probably colour will brown out.

[Achilles Tang]

The sensitive ones may not live long.... in the sea, there is almost zero nitrates, unless u are close to shore, mud flats, mangrove areas, dirtier lagoons.

Nitrate is a form of nutrient which the zooxanthellae in corals will utilise to some extent, causing an overgrowth, thus making corals brown.

To keep SPS colourful.... try to replicate almost perfect water quality.

[Chefri]

high nitrate cause RTN and STN or only browning ?

[Achilles Tang]

Browning first.... and sustained exposure probably will weaken the coral.

There shouldn't be any nitrite or nitrate reading ideally for a reef tank.

[Chefri]

thank you AT for clear answer.God Bless you

[Achilles Tang]

At your service!

AT