phosphate

Hi, I was wondering if anyone could recommend a reference solution for nitrate and phosphate to verify my Hanna and Trident NP tester. I know Fauna Marin used to have a seawater reference product but I think it might be discontinued as It says it is out of stock at all the retailers I use. I...

$25. Comes with a few reagents. Used it about 5 times, bought in Jan 2025

Hi all, I would like to get your advice about rebooting or not a tank. Mine is 50g that is 1.5 yr old. I started it with dead rock that I boosted with startup bacteria. It had a long nitrite cycle then was all fine. I used to have very tiny patches of dino/cyano/hair (not that expert to...

I've been using the reef-factory smart tester to test the phosphate levels in my tank for ~3 weeks now and like to report my experience with the tester. My tank is a IM 100EXT with the RFS sump. It's currently a low nutrient setup. Total water volume estimated to be around 110 gallons based on...

I'm having trouble with my sandbed, which is leaching phosphates and KH. Some people have suggested that I remove the sand, but I'm a bit concerned about this. Currently, there is no sand stock left in my country, so for now, I can only remove it, not replace it. Current Parameters...

Bought an old Red Sea Max 250 Used. My guess is around 10-12 years old. I bought it from the second owner. Had a mated pair of black ocellaris clownfish a few anemone and a yellow watchman goby in it. A wall of rock on the back and a ton of algae in the tank. I tossed quite a bit of heavy dense...

I’m dealing with some Dino in my tank, and read @ScottB ’s Treatment Guide - https://www.reef2reef.com/ams/a-dinoflagellate-treatment-guide.841/ However, the guide does not say how to dose PO4. In my confusion I bought Red Sea NO3-PO4-X, but after further research it appears that lowers nitrate...

Hi all! Long time lurker here, but the first time I'm posting. Long story short: I run a mixed reef setup with 20+ years old live rock and my nutrients keep bottoming out, to the point where my pulsating Xenia has all but disappeared and GSP won't even open. SPS are growing fairly well, to the...

TLDR the general consensus around phosphate levels seems to be changing. How high is too high? Mine is currently 0.4ppm. Leave it as it is or lower it? Hi all so a couple of months ago I requested your help around increasing nutrient levels. Well I picked up a sun coral on the 9th December and...

With my phosphate always at 0, I decided to shake things up this week—mixing 1/4 tsp of Reef Roids into 25ml of RODI and dosing 5ml daily. Sunday - 5ml Monday - 5ml Tuesday - 5ml Wednesday - 5ml Thursday - 5ml Friday 4pm - Results

Hey guys, I’ve a 60 gallon cube setup now with almost 4 months. I run it with two canister filters, one of which was on a smaller reef tank so was already to go for this tank. I’ve always being growing a lot of hair algae, and started to figure out it was my phosphates. I’ve been doing water...

I have had this tank running for an over year now just recently had some issues with a few of my Acropora. Seems if some had some burnt tips recently and some having some minor flesh die off. I tested and the only thing out of range was phosphate which was .23 ppm. I have lowered it over the...

I can NOT get phospates above 0.01. I like to do a water change at 20 for the nitrates, but would it be ok to leave for a few days to see if phosphates go up any further? I think there's enough live food and algae in the tank for the crabs and fish to eat, so I could hold off on feeding for a...

I’ve been trying to get my nutrients to a decent level for a while. Initially I had high phosphate and used gfo to keep this in check. I’ve used some form of diy algae scrubber alongside this. While gfo and diy algae scrubber worked for phosphate my nitrates were still higher than I wanted. I...

Hello everyone! I hadn't checked my phosphate in a while and started growing large amounts of (hair?) algae, see video. I checked and it's sky high! A few qs: Where do we think this is coming from? I make my own RO water, could the filters be spent? I'm replacing today. How can I massively...

I have: HI713 Phosphate LR $35 HI781 Marine Nitrate LR $35 HI758 Marine Calcium (ppm) $40 Need reagent Take all for $100. Located in NYC, shipping will run $10-15 depending on where

**SOLD** Full set of Hanna Electronic Test Kits. Set of 8. Used for roughly 6 months. Work and look perfectly. All reagents are current with at least a year before expiration besides the Calcium Checker which includes 0 reagents. They expired last month. This entire kit would retail for over...

Hi, Im looking at getting some Trisodium Phosphate to help me dose my phosphates from reading 0 as my SPS have started loosing a lot of colour from what i think is too low nutrients (0 nitrate, 0 phos and my alk dropped to 5DKH :O ), ive used Rany's guide for dosing Potassium Nitrate and sodium...

Hello, I started a new tank on August 17th 2024 using Caribsea liferock as well as about 10lbs of Carib sea ocean direct sand and 5 lbs of miracle mud. I used bacteria and ammonia to cycle the tank which went great. I am carbon dosing the tank, initially I used elimi NP from TM after I added...

Selling my new Trident NP with reagent. Passed the 30 days so I can't return it. I was going to set it up but I decided to hold off for now since I'm going to be out of town for work for a few months. See picture below. Message me if interested. Selling it for $650 shipped.

Has anyone put nitrates and or phosphate remover in their ato water/container? I’m currently using gfo but I can’t get my phosphates low enough, I have some algae starting to grow on the rocks. Also, nitrates won’t budge… I’m not home enough to continuously feed although I do have a auto...

Hi, I’ve recently noticed this type of algae growing on my rock work and sand bed but I’m having issues identifying it. I has am appearance of bryopsis however looking under the microscope it doesn’t appear to look like it, I’ve also ruled out green hair algae as I have dealt with it before and...

I have 3 Hanna Checkers for sale: -Hanna HR Nitrate tester with in date reagents -Hanna Phosphate ULR with in date reagents -Hanna Alkalinity dKH (will need new reagent) Asking $100 Shipped for the set of 3 PayPal only

Hi all, I’m having this type of algae growing all over my tank, majority of it is growing on the sand bed. It doesn’t look like green hair algae to me, this stuff feels more rough..Please help!

The tank has always seemed to run low on phosphates. i started the tank last may (2023) and i have never been able to detect phosphates using the titration test kits so i bought a Hanna ULR phosphate tester and it normally shows .03. I had a round of Cyano and after a few weeks of no luck i...