Have been at 40ppm for about two months but recently went to 80ppm. Have a 50gl fish tank with live rock and just a tiny bit of Xania that came in some live rock. Equipment used a marineland 200 HOB
filter with no bio media or bio wheel just carbon filter. Using a coralife 65G protein skimmer got two power heads a jup 01 uv
light and about 55lb live rock and 30lb ogranite live sand.
Lyretail wrassle about 5inch
Panther grouper 3inch
Yellow head moray 6inch
Snowflake moray 12inch.
I do 5gl water changes every week and still won't go down. Make sure the filter is nice and clean feed them 1-2 a week still can't get my nitrates to go down :/ any ideas?