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Jon Lazar

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About Jon Lazar

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  • Birthday 12/06/1967

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    Alexandria, VA

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  1. It's designed to be plugged in all the time and functions automatically. The onboard computer will open the valve when you start making water. This diverts the high-TDS water that initially comes out of the RO membrane. Otherwise that high-TDS water goes through your DI chamber. The DI chamber will reduce that water to 0 TDS, but it uses up a lot of resin to do it. The auto flush also periodically opens while you're making water to flush contaminants off the RO membrane, extending the membrane's life.
  2. Jon Lazar

    Help figuring out what's wrong

    You have two classic symptoms of too much light. Your corals aren't expanding, and they're expelling their zooxanthellae. Move the corals to a shady spot. It may take them a few days to act normally, but don't worry. Corals can last a long, long time with too little light. But too much light can kill them quick.
  3. Jon Lazar

    rodi question

  4. Jon Lazar

    rodi question

    There should only be one restrictor, and it goes in the waste line out of the RO housing. The restrictor has to be the correct length so that it generates the right ratio of waste:product water. The restrictor comes presized, but you really should check the actual ratio by running the RODI unit and collecting product water in one container and waste water in another. You may have to trim the restrictor to get the right ratio.
  5. Jon Lazar

    RODI system question.

    Your results are not what most people experience, but it's still possible that the RODI is functioning normally given your tap water. You need to figure out what's going on with your current setup before you buy a new system, because you may need to buy an RODI that addresses your tap water issues (if there are any). Otherwise your new RODI could suffer from the same poor performance as your current one does. - Are you on a well? It's common for well water to have elevated CO2 levels which rapidly deplete your DI resin. - Does your tap water have high TDS? Your Mity Mite RO membrane is rated at 98% under ideal temperature (warm) and pressure (high), and the actual performance is probably less than that. Let's say your input TDS is 400 and your RO membrane is removing 96% of TDS. That means the water leaving the membrane and entering the DI filter has a TDS of 16, which will also rapidly deplete your DI resin. - Does your water utility use chloramine? In Fairfax we use chloramine half the year. Chloramine will damage the RO membrane, reducing your TDS performance, and increasing your DI usage. I would start by taking TDS samples of your input water and RO (not DI) output water. Measure your water pressure going into the unit. Also check with your water municipality and see whether they use chloramine. They probably have a complete water quality report available online.
  6. Jon Lazar

    Lynn's Fish Room

    This is good advice. It's worth clarifying though that TTM only works for ich, not velvet or brook.
  7. Jon Lazar

    Need temp controller and probe advice

    I wouldn't worry about it. Stainless steel rusts very, very little, and the heaters that are titanium coated don't rust at all. Besides, I think the granulated ferric oxide people run in reactors is, roughly speaking, rusted iron.
  8. Jon Lazar

    Ideas for last fish?

    I have an orchid dottyback in our 34gal Red Sea Max and it does just fine with the other fish. Tankmates are a pair of ocellaris clowns, a pair of neon gobies, a yellow watchman goby, and a miniature foxface.
  9. Jon Lazar

    Hand irritation?

    I had frogspawn in a previous tank, and it gave me painful and itchy stings any time I brushed up against it. They looked and felt like bug bites.
  10. Jon Lazar

    Canopy weight?

    We put foam under our tanks to prevent a point source on the top of the stand from cracking the glass. Why not apply the same principle to your hood? Buy a roll of velcro tape and attach the "loop" part to the bottom of the hood, where it rests on the tank rim. That will help spread the weight of the hood more evenly. I'm pretty risk-adverse with my aquarium and over-engineering things, and this is what I plan to do for my very heavy hood.
  11. Jon Lazar

    Cycling a tank

    The bubbles are in the sump because that's where the most vigorous air/water mixing happens. Your overflow and sump are acting like a protein skimmer. Something besides H2O and salt mix is in your water. If it were my tank, I would drain, rinse, and refill. Otherwise, use lots of paper towels to absorb the bubbles, or a shop vac to suck them all up. Then run carbon. Also, I would put a hose clamp on that vinyl hose in your picture, even though the line isn't under pressure.
  12. Jon Lazar

    Do I need a new tank?

    I debated for a long time about removing my corner overflows, drilling, and installing a low-profile. I knew I'd like the look, but I hated the extra time and effort I knew it would take. I am SO glad I did remove them. The look of the tank was absolutely worth it, and the new overflow is a zillion times quieter than my old durso.
  13. Jon Lazar

    Do I need a new tank?

    I think AlanM is right. I'm not a tank builder, but most everything I've read supports the idea that all the structural integrity comes from the silicone butt joint between the two panels. The fillet of silicone inside the tank is a pretty way to finish the sealant, and adds little, if any structural strength. My observations support this. I removed glass corner overflows in my current tank. It was easy to scrape off the fillet of silicone on the inside corners. Once that silicone was gone, it was extremely difficult to cut away the silicone joint and separate the overflow from the tank. Those seals were 0.25" glass. Yours are twice as thick, and maybe twice as strong. Who doesn't? Seriously though, I think your tank is safe. But it's also a good idea to always think about how you'd do things "next time", so you can make improvements when those opportunities come up.
  14. Jon Lazar

    Where can I get Chloroquine phosphate

    The tank transfer method (TTM) will clear ich, and is good for sensitive fish. TTM won't work for other common parasites like velvet and brook though.
  15. Jon Lazar

    Where can I get Chloroquine phosphate

    The ideal place to get this is from a vet so you're certain it's a pure, potent drug. The vet route isn't always easy though, so many folks buy it on Ebay.