I do a 30% water change every other week .
My parameters last week were.
Ntri .1 ( trace only)
I have a 250 ltr tank that has been running for 18 months before that I had a 100 ltr Nano for a year that I upgraded to this.
I dont have a lot of corals but do have a few maxi anemones and large, 150mm , mushrooms.
My lighting I have changed ,but only 10 days ago, to LED
. Before that I was using metal halide and T5s.
Its not so much my corals that are suffering its my rock. Im loosing all the purple colour and all the alge off the glass is gone.
I changed my salt because I bought a tub of coral reef and not coral reef pro so have now changed to the right salt. I used the other salt for about 2 months. I have been loosing colour for about 6 weeks now.
I only feed with mysis.
Fish I have are
Blue tang 100mm
yellow tang 100mm
coral beaty 50mm
flame angel 50mm
maroon clown 80mm
maroon clown 40mm
leopard wrasse 80mm
2 gobies. 40mm.
Various shrimp (5)
snails and crabs about 20 total.