salinity

  1. T

    NaOH vs NaCO2 in Balling - which raises salinity more?

    Hello, I wonder if using Balling with NaOH as the only/main source of kH increases the water's salinity by the same amount as NaCO2 or NaHCO₃. I guess @Randy Holmes-Farley will be the best to answer :)
  2. T

    Salinity level's influence on tanks microbiome

    Hey there, Somewhere I read that salinity level has an influence on the microbiome. It said that higher levels (above 1.025) limit advantageous bacteria's diversity/ability to reproduce and remain active. There's surely something about it, as one of the best aquarium bacterias product - Microbe...
  3. Sailaway

    Salinity- is this accurate?

    Just added saltwater to my tank, from my LFS. I’m very new to this and bought this fluval hydrometer. Don’t know if it’s accurate or not, just figured I’d start with this and upgrade later. I’m not sure if this is accurate though. Is this hydrometer not worth a lick? I followed directions and...
  4. C

    Aquarium Controller Testing Dry Goods Brand New GHL Profilix 4e Starter Set (White)

    Brand new in box, sealed. Asking 600. Will consider trades for new or lightly used G5/G6 XR 15 with Mount + some cash.
  5. Measuring Salinity / Specific Gravity in Aquariums

    Measuring Salinity / Specific Gravity in Aquariums

    Salinity Measurements for Marine Aquariums @Jay Hemdal Introduction The fundamental difference between freshwater and marine aquariums is of course, their respective salt content. The salt level is usually reported as either salinity (parts per thousand of salt in water) or specific gravity...
  6. reefsaver

    Real-time Salinity Monitor?

    I was wondering if there was any Salinity testing equipment that actively reads Salinity in real-time, I use the Hanna Salinity Checker which I really enjoy but sometimes I get the feeling that it's not as accurate as a Refractometer.
  7. Drneil

    Low Sodium due to HCl from Alk monitor?

    I've now had a second ICP returned indicating low sodium and hence low PSU, latest 29.30PSU! Last ICP was 30.70, which ended up scrabbling with multiple refractometers and calibration fuilds making me happy my tank was at 35ppt. Mg and K are at the low end, but Ca is normal. These are were I...
  8. C

    Top Salinity Reading Tool?

    Good afternoon, I’m looking for the best long term choice for salinity readings. I don’t mind paying up to $200 if it means I’m getting as close to “precise” as possible readings because that way I can get closer to point of stability. •Is this the top of the line for refractometers¿ And is...
  9. C

    What is your preferred way of checking salinity?

    Good afternoon, Using tropic Marin pro reef mix (German); I have ~25 gallons and added 12 1/2 cups of salt and ended up with 1.010 on my refractometer after 36 hours (heater at 77 and power head in the brute container too) which idk why feels odd. The furniture I was planning to put the tank on...
  10. Shy519

    Help! I raised the salinity too fast!

    I ran random parameters due to upset polyps. My salinity was sitting at 1.017 and I believe I raised it too fast. It's now at 1.023 and I ticked off all my corals. My chalice and candy canes are currently shedding color and slime throughout the tank while all my polpys are closed. I'm worried...
  11. Dad2Wyatt

    Should I top off my water before doing a water change to adjust salinity?

    So finals are looming for me so Ive been swamped with college work the past couple days and haven’t been topping my water off (I know I know ATO). I’ve been testing my water daily this week trying to determine my nutrient intake. With today being day 7 I finally started to see a drop in...
  12. Diveks

    Acropora with salinity difference. Drip or not to drip?

    Do you all drip acclimate your acros? Ive always dripped all of my corals but ive heard some say its unnecessary and just stresses them out more. Im starting to rethink dripping. But this new batch of acro (40 min drive) came with a 0.005 salinity difference. So my question is at what salinity...
  13. Oggey

    Coral dying, Salinity spike!?

    Have a 75 Gallon mixed reef tank with sump, skimmer, cheato, 2 part dosing. System been running for 3+ years My wife noticed a bunch of empty snail shells at bottom, more then few extra I have for hermit crabs to use. Looking deeper found bunch of snails had died, blastomusto pulled in and not...
  14. E

    In-line probe holder and Neptune conductivity probe

    So I just went through the huge trouble of making a online probe holder that is on my return pump manifold, the problem is I’m still getting jump readings, it’s off and keeps dropping every hour , is there something I can do to fix this problem? Also does anyone know the max flow than can go...
  15. reefsaver

    Testing and adjusting PH before adding Salt?

    If I test my freshwater bucket for PH before adding salt to raise salinity and adjust to a desired PH, then add my salt. Would I be doing the wrong thing? like how much would salinity change my PH?
  16. SaltwaterGuruNeeded

    Hyposalinity for prazi resistant flukes?

    I believe I have prazi resistant flukes in my tank...Wondering how to eradicate them and a method of treatment. How would I go about quarantining fish in hypo salinity? I have a good idea on how to do it, but I just want to make sure I do it correctly. My Display is at 1.026 SG And I have 1 10...
  17. selcuksan

    Drifting Salinity measurement with GHL Profilux 4

    Hi all, I bought a GHL Profilux around July. After a tedious installation process, I start getting measurements for Salinity, Temperature, PH and ORP. Salinity was spot on around 35ppt, also matching with my D&D refractometer. But then it started drifting to 34 ppt and stabilized around...
  18. Afkomjorgen

    Help! Salinity WAY too high! How to lower?

    Hey! Finally got a new refractometer. I calibrated it using distilled water and took a reading of the tank. 1.033! Usually the tank runs around 1.026 although lately it’s been closer to 1.024 Recent changes: I moved houses and changed 50% of the water in the 29gals I upgraded within two weeks...
  19. SaltwaterGuruNeeded

    1.024 or 1.026, what's your preference and why?

    Which is a better overall salinity for fish, 1.024 or 1.026 and why?
  20. reefsaver

    Mixing Station - Can you speed up the process with an external heater?

    I usually sit a 25W heater, an air pump with air-stone and a 1000Lph pump in a 5 gallon bucket, I put in around 700g of salt with 18Liters + or - and usually come back around the same time the next day to do a water change. Would there be anything wrong with using an external heater to heat the...
  21. SaltwaterGuruNeeded

    Are these params good?

    I have a 125g aquarium, with a fluval fx4. It has a carbon filter, some filter floss(mostly for catching the diatoms), and seachem matrix media. I have a Coralife 125g protein skimmer that still has microbubbles for about a month now and it is pretty loud, but does produce skimmate. I have some...
  22. yanni

    What salt to use

    Hey all, Ive been slowly piecing together my tank, and I’ve spent the past few weeks deciding on what salt to use. I’m currently hung up between Red Sea Salt, or their Coral Pro salt. I live in Australia so some other salts are unavailable, but for my tank needs the coral pro seems best I’ll...
  23. Muffin87

    good salinity checking routine? suggestions?

    I want to get into the habit of checking my salinity more often. The issue is using a salinity measuring tool that I can trust, and rely on without having to tinker with it every time. An analog refractometer requires quite a bit of tinkering and cleaning for one measurement. The Hanna Salinity...
  24. Joseph3

    Auto Top Off System with a Pulse Return Pump

    Hello! I will be going away on vacation in around two weeks for 10 days and I'm considering getting an auto top off system to control the salinity while I'm gone. But there's a catch! My return pump is set to pulse mode and the sump water level changes. Will an auto top system work in my sump...
  25. Vivid Creative Aquatics

    The New Salinity Probe Stability Kit Makes Monitoring Salinity Useful Again

    We are pleased to officially announce the newest product from Vivid Creative Aquatics - the Salinity Probe Stability Kit, or SPS Kit for short. Roughly half of those currently running a Conductivity probe to monitor salinity are having issues with sporadic readings and unreliable results. The...
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