Acans receeding

[gators614]

i have had these acans in my tank about three weeks

Calcium 450
Magnesium 1470
Alk 7.2
Nitrates 0-2

Any idea what's causing it and how to stop it everything else in the tank is doing great

Thanks

 

[A Toadstool Leather]

I would use a red light and shine it at night on the coral to see if anything is causing damage.

Can we see your other params? What other corals and fish are in the tank?

 

[gators614]

What other paramters?

What do you mean by shining a red light?

I have frog spans, zoas, hammers

 

[fabutahoun]

Do you Target feed your acans? if not try to feed them some coral foods like reef frenzy
7.2 KH is a bit on the low side, I am more comfortable with values from 8-9. remember if you want to Increase KH do it slowly over few days

 

[A Toadstool Leather]

What other paramters?

What do you mean by shining a red light?

I have frog spans, zoas, hammers

salinity, temp, pH, etc. By shinning a red light at night at the coral you can see if any pests come out at night and bother the coral. Marine life cannot sense red light so if you spot a pest with one it will not react. What kind of light and flow do they get?