nitrate control

Hello everyone, I have a question that I might have already figured out but want others input as well. I have a predator tank with sharks, rays, puffers, and a eel. I've been battling with Nitrates for a while and the best I've managed to lower them to is 20ppm with 70% water changes every 4...

I need to find a way to raise my nitrates. 75 gallon tank with about a 30-some gallon sump. I have four smaller fish in it right now and about 20 frags. I thought about dosing and might try to go with brightwells neonitro to do so but according to their website it will also lower my phosphates...

I am doing training to learn about peritoneal dialysis, which uses diffusion across a membrane to remove waste products from people with kidney failure. Has anyone heard of using a membrane and freshly mixed saltwater to remove nitrogen/replenish trace elements this way?

I know this is not necessarily an emergency but I just added a decent bit of livestock to a 20 gallon cube tank. This includes: - a small Scopas Tang - a Black Snowflake Clown - three various snails - a Tuxedo Sea urchin - a Tricolor Goniastrea Coral Previous to adding livestock to this NEWLY...

I am new to saltwater aquariums. I started my tank a week ago and did a water test yesterday. My nitrate levels are at 20 I have no fish in it yet. I was wondering if this is a problem or if it would even itself out.

Help me understand the BALANCING-ACT once you're infested with GHA On one hand, in order to minimize or eliminate GHA you have to STARVE the tank of Nitrates & Phosphates.... this leads to your corals STARVING.....where they just maintaining their size but NEVER grow. On the other hand, if you...

I am having an issue with high nitrates in my reef and I am trying to lower them. It was round 100 about 3 weeks ago. I changed my filters and resin on my RODI and have 0 TDS. I did a 30% water change. I also cleared out some old sponges and detritus that was in my sump. That brought my...

Someone once said - nothing good ever happens fast in a reef - so... I have been busy with life and am now able to turn attention back to my 40g Reef. I have lost most LPS with the exception of shrooms which are quite happy with the mess. I have a Duncan that is hanging on. SG is on, pH @...

Hi everyone!! We all have read about nitrates, its reduction, toxicity to reef in some ways etc etc. But alot of people have different views for nitrates: 1) Some say, it should be kept less then 10 or 15ppm. 2) Some say below 10-15ppm their reef doesn’t survive. 3) Some say keeping nitrates...