Need Advise For Nitrate Phosphate Balance

[LordGman76]

.6 or so on Phosphate. Try to get to around 8-10 on Nitrates. Just clean sand and do a 50 percent water change. Then wait about a week and do a 25 percent. should be in decent shape after that. In my opinion.

 

[Jipolley]

Hoping to get Randy’s expertise here as I feeling like I’m going in circles. I have a 210 a 120 a 300 gallon sump and a 60 gallon frag tank all on the same system. Total water volume estimated at 575-600 gallons. Tanks are 18 months old. Parameters are very stable at 8.5alk, 1400 mag, 450 cal all tested daily on trident. Full of probably 400lbs live rock, SPS, LPS, and softies which all are doing well and growing. My struggle is nitrate and phosphate balance. Since im dosing I don’t do water changes. My nitrates sit between 30-35 typically and phosphate has become an issue with bottoming out regularly …both tested with Hannah testers. My goal was to get nitrates in the 10-15 range and phos .1 and under. I’ve been carbon dosing at 100ML per day DIY NoPox 500ml vinegar/400ml vodka/100ml ro water as stock solution for the last 6 months. I tried going up and down with the dose and nitrates didn’t really move. Went as high as 175ml daily and started getting white film so I dialed back to the 100ml dose. I recently added a fuge in a 5 gallon bucket full of Cheato and sea lettuce and an ATS200 algae scrubber. I’ve been running the scrubber and fuge opposite of the tank lights. That’s been going for about 2 months and still no reduction in nitrates. However major effect on phos which I expected. I’m now dosing Neophos at 30ml a day to try and keep the phos from bottoming out but since the scrubber is established and fuge is growing wildly all phos is being immediately consumed while nitrate is remaining the same. I feel like I’m at the point of overkill but dont know what to change or omit to get the.numbers where they should be. What’s the right combination ?I also run a Reef Octo SR6000 skimmer and 2 large filter socks which recently seem to overflow within 24hrs at most. Thanks in advance for any advice that can help me get these two parameters dialed in

I can only imagine its from leaching rock