closely following!!!
My studies say pacific oysters take more nitrates and nitrites then they give, I currently have 2 small blue green chromis, 1 watchman goby, 1 turbo snail, 1 pacific oyster 4.5 inches with 2 barnacles and 3 young oysters attached to shell with 1 LB. of cultured live rock above 2 lbs. of crushed calcium carbonate substrate. I have used a bottle of live bacteria 2 nights ago up to 30 gallons; in a 3.5 gallon Pico tank in my RV and currently change and reuse water as a single gallon becomes unsafe or unsuitable for recycling after nitrogen cycle is controlled. I added my fresh live grocery store pacific oyster today immediately after received from the shipping company with all wanted and unwanted species attached, brushed all mud and detritus carefully from the shells/valves into my tank while preserving the spat and barnacles. After a short time I changed 1 gallon of water due to ammonia and nitrogen, and observed as the new life forms began to express and display. I also agitated the substrate to bury the native mud and micro-biome from the oyster into my Pico which was started less then a week ago. I fully expect my nitrogen cycle to complete within 3 more days using bottled denitrifying bacteria.