Hi, running 2 nano SW tanks since Nov 17.
1. my PH is always at the lowest end of 7.8 and even if i add in the buffer to raise it to 8.3, by the next day it would drop back to 7.8
2. Mg is always between 960 to 990 despite adding Mg every other day
3. PO4 is always between 0.25 to 0.5 despite adding PO4 remover every other day (together with Mg)
4. on alternate days i would also add Brightwell Aquatic Reef Building supplement
Currently in tank:
1 purple tip malu anemone
1 RBTA
3 clownfishes
1 sea cucumber
1 dragonett
1 carnation coral
a couple of LPS/SPS
1 starfish
1 flaming scallop
On the average, my water parameters would be:
PH - 7.8
Ammonia - 0
Nitrite - 0
Nitrate - 5 to 10
KH - 10 to 11dKH
Ca - 440 to 460
Mg - 960 to 990
PO4 - 0.25 to 0.5
Am I doing something wrong here? I had a basic dymax protein skimmer and do water change weekly with NSW bought from Pinnacle Aquatics