Recent content by dnjan

Help Support Reef Frontiers:

  1. dnjan

    WavemasterPro died after 20 years

    Thanks. Unfortunately that one costs more and does more than I really need.
  2. dnjan

    WavemasterPro died after 20 years

    My WavemasterPro died. What do people use to control two or three powerheads for random tank flow?
  3. dnjan

    Critters for Hair Algae

    What are your preferred critters for eating hair algae? Thanks, Don
  4. dnjan

    nitrates

    I didn't realize that skimming could appreciably remove ammonia. I thought skimming primarily removed polar organics.
  5. dnjan

    nitrates

    I am not familiar with the mechanism by which a skimmer removes nitrates. Please elaborate.
  6. dnjan

    RO/DI Storage?

    Or you could just be having CO2 from the air dissolving in the water, which will increase conductivity and show up as an increase with a TDS probe.
  7. dnjan

    GPH In Sump

    Exactly! In an extreme case (zero flow because the power is out), the sump had better be able to handle all the water in the display tank that is above the overflow.
  8. dnjan

    Refractometer for poor people

    Since seawater refractometers are normally calibrated to sodium chloride solutions (not actual seawater), how large is the error? I remember stumbling across an article on that topic years ago, but don't remember where.
  9. dnjan

    Refractometer for poor people

    the salinity or the specific gravity? Within a reasonable distance from 60F (typical calibration temperature for many hydrometers), the correction is .001 per 10 degrees F. So if your water is 80F, add .002 to the hydrometer SG reading. So for the precision needed for aquariums, a hydrometer...
  10. dnjan

    Refractometer for poor people

    Actually, it is hard to beat the accuracy of a quality hydrometer unless you are spending around 10 times the hydrometer cost on a refractometer. However, cheap hydrometers are a total waste.
  11. dnjan

    Refractometer for poor people

    Only until you break it ...
  12. dnjan

    help with loud pump

    It is very possible that the pump noise is being amplified by the "hollowness" of the stand. One check would be to see if putting a large piece of soft foam (temporarily) in the cabinet makes it quieter.
  13. dnjan

    Painful...

    Luckily, my driveway runs uphill as it goes away from the house. I bought a drinkingwater-safe hose and cut off the metal fittings. I can then siphon the water (saltwater, when I make a Seattle Aquarium run) from the 60gallon tank in the back of the SUV that is partway up the driveway, through...
  14. dnjan

    carbon monoxide detectors

    Thanks for the clarification. I hadn't thought of the exhaust-fan related issues. My house is old and air-leaky enough for that to not be a concern. You haven't taken over the garage completely (yet), I assume, if you are allowing your wife to keep her car in there. Sounds to me like you...
  15. dnjan

    carbon monoxide detectors

    Sorry if it seemed like a troll. Not meant that way at all. Having just installed a CO detector in our house (and not thinking it was much of a problem but doing it because it is now required), I was curious about the situation for which you would think it necessary to protect your tanks from...
Top