salinity

I have tried The Hannah salinity tester (actually I have 2 of them), the brs refractometer, my lfs refractometer. I can't find a tool that makes me feel 100% confident in my salinity. The drift that I have from my Hannah is absurd. After 3 days of use and another calibration my salinity was...

Hi everyone, I'm totally new to this and I have my tank (46 gal) in its 2nd week of water cycle. My salinity measure was 1127 2 weeks ago and now it reaches 1131. However, the algae is still growing according to the instructions/guide I read. Is it necessary to lower the salinity and how should...

Okay so Hanna's Digital Salinity Meter requires calibration right? Could Hanna produce a Checker that did not require the purchase of calibration solutions? For example if a Salt Mix Pack says "Mix 1g of salt to 1 liter of water for 35ppt" Bearing in mind Hanna Calibration solution is 35ppt, you...

I have 16g biocube. Last week (Thursday) I did about a 15% water change. It was the first water change since adding livestock. I have (had) one oscellaris clown, one trochus snail, and a zoa frag. As I was performing my water change, all was well. About an hour after I finished, my clown went...

In my 65G Reef tank recently added UV Sterilizer which has increased temp by a degree. Also, 2 return pumps, a Reactor pump, UV pump, and Skimmer also are contributing to the heat in the tank. I was maintaining my tank temperatures at 77-78F before adding a UV Sterilizer. To cool down the tank...

Hi all, I bought but never used, $20 shipped to 48 states. 25-Pack HI70024P 35ppt Salinity Calibration Sachet - Hanna Instruments

Hi i'm new to reef2reef so i dont really know how tags work, but I do have a few questions, the biggest being how ro/di water works. Today I recieved an aquaticlife ro/di, and when I tested the hardness (my tap water is beyond unsafe due to it) in which it came out to 0 for the first time ever...

Hello Where can I buy tropic marin hydrometer?

I’ve been reefing for over a year now and just got my first ATO system. I have a 10 gallon mixed reef tank and I would top off around 16-20oz of water a day due to evaporation. My question is, prior to setting up my ATO, what other parameters were likely effected by the salinity swings between...

I recently installed a heater. Never had one before, living in hot south Florida, never really needed one, but I decided to add one to keep temps a little bit warmed in the house with air conditioning. I have been check the temps today and I noticed that my salinity kinda follows it. I know salt...

Hi guys, Back in the hobby after a seriously long hiatus - so practically a noob now. Have a question on using NSW for my pico. (It's a 5g Fluval evo that I perform a 90% water change on weekly) The natural sea water I collect here in Nassau has a salanity of about 1.028 - 1.029 when I...

Hi Guys, Ive kept freshwater and marine tanks before, going to try my hand at a brackish one now. In your experience, what is the minimum salinity in which a protein skimmer becomes effective? Thanks.

I, like many others, have had issues with the conductivity probe from Neptune Apex. When I had the Profilux 4, it's probe nicely matched my two Hanna conductivity probes. After switching to the Neptune realm, I never was able to get included probe to calibrate. I purchased another on the off...

TL;DR: Can I mix up Balling Part C such that it has a 1350 Mg and 400 K when diluting for salinity increases and only use when I dilute the tank (rather than dose it daily)? I have a 20g nano mixed reef that is about a year old. The frags are becoming small colonies now, along with coralline...

Hi, I have a few LPS in my tank, but recently my sanity levels fallen below the one I would like it to be. Currently 32-33%o ideally I would like to increase it to higher. Two questions here how high? How would you do it. Water changes doesn't seems to efficient. The tank is LPS dominated...

I have just bought some brightwell calibration fluid for my refractometer, I use to use acurasea but I couldn't get more of that. With acurasea it said my tank was always at 1.025 salinity but now I have calibrated with brightwell it says I am well under that. This is what it reads with the new...

I have a Large FOWLR tank and wanted to know how quick can I raise my salinity? I normally use the 30 mins for every .001 when I acclimate fish that are .002ish off but I would be raising it from 1.011 back to 1.024. I want to run Hypo on my tank because I have a concert that there might be...

The one and only Milwaukee MA887 Salinity Refractometer! This ships with the clam shell case and fresh battery. In fantastic working condition, I am only selling this unit because I already have one. Otherwise I wouldn't give one up for the world. Clam shell case has some scuffs but both it and...

Hey I need to do hypo-salinity on the FOWLR and I wanted to know if my Horn Shark would be able to handle the lower salinity 1.009 for about a week. Some articles say it would be okay but some articles say it won't work for them based of there osmotic pressure inside and how they defuse the...

So it’s my first time cycling a tank and the first few days my salinity was at .025ppm but then on the fourth day it went down to .022ppm I read about salinity going up but not going down. I checked again today and it’s back up to .026ppm. So my question is if it’s normal for salinity to change...

My salinity is rising slowly rising and I don’t have an RODI system. I do have an RO system that I drink from but I was told that RODI is better for the fish. Any ideas what water I could use to top off my tank? (my RO has a TDS of <30).

I rejoined the hobby back ~2016, and everyone seemed to agree that 1.025 was the perfect salinity. Lately though, more and more I've been hearing that 35 ppt is what you should target for mixed reef or SPS dom. It's strange to me that these are often used interchangeably, since 1.025 is really...

I made the rookie mistake of calibrating my refractometer using RODI, checked against LFS water to confirm no egregious slope errors. Refractometer is the red sea unit. I've been reading up on it and seeing that it's incredibly finicky and prone to giving vastly different readings on the same...

In Short: I have salinity at 45+ ppt. How can quickly can I take it down to 35? Should I be water changing with RODI water or low salinity water. In Long: I have been running a reef tank for around 5 months now. It's a reefer 250 (55g). Over time I have gradually tried to add corals. With a few...

Hey all, New poster here. Wanting some opinions. I have a 20g (L) tank, currently running as a fish only set-up but I’m in the process of prepping for coral. This is a tank transfer from my other three year old 20g that sadly sprung a leak, which was a transfer from my first tank, a thriving...