Quick top off question

Discussion in 'Water Chemistry' started by Marty, Feb 27, 2008.

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  1. Marty

    Marty Stylophora

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    I need to add about 2 gallons to top off. I've run tapwater through my fridge filter to remove the heavy metals and I've treated it to remove chlorines and such. I have ocean pure salt, is there a formula to determine tablespoons full of salt to add per gallon. I have 50 gallon bags that aren't labeled and I'm not sure it's worth the trouble to weigh them out if there is an easier way. Thanks.
     
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  3. bmshehan

    bmshehan Fu Manchu Lion Fish

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    Don't know about your measurment question, but check out this post by ReefSparky about getting an RO/DI unit. It was posted on the "tap water" thread that is active right now.

    "I think in this hobby if you can't afford some basic necessities, it might be best to wait it out until you can. This might not be the pasttime to start on a shoestring budget. If you skimp in the beginning, oftentimes you'll be paying for it later by being forced into buying what you should have in the first place.

    Here's a basic example. Say for instance you invest in great lighting, but you don't get an RO/DI setup. Instead you decide to use water conditioner that's $10 a bottle at say, two bottles a month. Ammonia, nitrite and chloramines are no issue, just as the product promises. However phosphates from your tapwater aren't removed by this product, and lo and behold, after about six months you develop a tremendous hair algae problem.

    You read around and out of desperation you purchase 30 snails for $60 bucks. Then you hear that there's this miracle liquid out there that will solve the problem for about $40 in treatments. There went $160 bucks that could've gone towards that RO/DI setup.

    A phos reactor and really good protein skimmer can be $40 and $400 respectively. A decent RO/DI setup can be had for $169 if you shop around. If you purchase these three things in the very beginning, you're guaranteed an easier go at it. Another plus is the wonderful lack of expensive fires that require immediate extinguishing.

    Patience is the key here, if you can scrape up some funds over time and THEN start this whole ball rolling, you'll be glad you did.

    Good luck ;D;D"
     
  4. bmshehan

    bmshehan Fu Manchu Lion Fish

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    Oh, and if your salinity is good, topping off should be done with water only, no salt. Unless your talking about adding water to start your tank. Just topping off because of evaporation, the salt is already in the water.
     
  5. ReefSparky

    ReefSparky Super Moderator

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    Instant Ocean says 1.5 lbs for a 5 gallon bucket. That would be 4.8 oz. for a gallon. Check salinity before adding with a refractometer if you have one.

    And like bmshehan said, don't add saltwater to replace evaporated water. Technically, "top off" water is water used to replace evaporated tank water.

    For water changes and filling a new tank, you'd use mixed saltwater.
     
  6. Marty

    Marty Stylophora

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    We plan on getting an RO/DI setup, just trying to work it into the budget. Probably will buy a unit in early april. Any recommendations for around $300 or less?

    Thanks again for the info.
     
  7. Marty

    Marty Stylophora

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    You're right. I actually thought of that after I logged off. LOL!
     
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  9. Otty

    Otty Giant Squid

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    Holy crap for $300 you can have a nice RO/DI unit. Try Air Water & Ice as they are a 3reef sponsor. I got a Typhoon III and love it. Customer service is great too.
     
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  10. Marty

    Marty Stylophora

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    Thanks Otty, will check these out.