Ok guys what should I do to lower nitrate lvl in 10 gallon nano fusion salt water tank . Have 1 long testicle sea anemone , 1 common purple sea urchin , 2 zebra turbo snails, 1 red leg hermit crab, 1 mandarin gobie , 1 scarlet skunk shrimp , 1 1" frag plug of green star polyp , 1 zoa, 1 blastomussa. Nitrite lvl is 0.0 , ammonia lvl is 0.0. , ph lvl is 8.0, nitrate lvl is 80 ppm. Do weekly water changes of 25%-35% and nitrate lvl has not dropped in 2 wks . Fish and corals seem to be doing fine but would like to get lower to keep tank for futur fragging