Iodine & Reef Aquariums

Iodine & Reef Aquariums


hi guys and girls I’m reef men and today I wanted to talk about iodine atomic number 53 iodine is the heaviest stable halogen element and it is unique among them where it is a metallic solid at room temperature and sublimates directly to a violet gas if you want to speed this up and you have iodine as a solid you can hit it with a heat gun like I am here I’ve got it in a beaker and we’re just warming it up so that it sublimates faster and you can see the violet gas coming off of it iodine was discovered in 1811 and is named after a Greek word which means violet colored you can see it’s very appropriate name there are two forms of iodine that are important in reef tanks iodide a single atom of iodine and I add eight an iodine atom and three oxygen atoms depending on the actual animal it will use one of these two things and some of them even convert from one to another phytoplankton are a single-celled algae is an important thing that does that in the ocean iodine is usually around 0.06 parts per million however that varies significantly with where you exactly you measure it so that’s kind of an average value you don’t need to necessarily target that specifically in your tank definitely play around with it see what level works best in your tank don’t go much above that you can go down to zero without much detriment there are two types of iodine that we use in our tank we have logo solution which can be used as a dose in your tank to raise the level of iodine but it’s more commonly used as a dip when you’re trying to fix a bacterial infection in coral it’s actually been used since 1829 as a disinfectant and it is a disinfectant because dye iodine is very reactive it’s an oxidizer and it’s the active part of locals that makes it actually work as a dip or a disinfectant you can even use locals to disinfect drinking water in an emergency if say you’re camping or you know natural disaster happens you could use it in small amounts to sanitize your water the other main thing that people dose is potassium iodide potassium iodide like this made by Brightwell is just a solution of potassium iodide and water this one I think it says is they don’t tell you how much is actually in there but they guarantee that it’s going to be at least fifteen thousand parts-per-million iodine potassium iodide is actually also used to iodized salt if you go to the store and you buy salt at least here in America most of the time you’re buying iodized salt that’s a mixture of salt and a CL and potassium iodide and that’s because most of the things that we eat here in America don’t contain iodine and so you don’t get it as part of your diet if you don’t take it as a supplement and they found that it’s easier to just put it in salt than it is to get people to go out and buy a specific supplement and that’s what they do here in America at least iodide is the most directly used kind of iodine in our tank it’s used very much by marine allergies in our tank and it could be even up to one percent iodine by weight so if you were to pull out some kado Morpha depending on the exact species you have dry it out and then analyze what it’s actually made of you might find that it it is one percent iodine by weight or even up to 1,100 parts per million iodine most things that use iodine in our tank actually use it to deter other things from eating it that’s why se queda morphic can be such high iodine plants that have a lot of iron in it don’t taste good to fish that eat plants and so it will survive more in the wild by having this high level of iodine in it other things that use iodine in our tank we have some gorgonian sea fans these iodine wouldn’t build in their skeletons tunicates use iodine to make something called lukanov B it’s a toxic compound and you know things that are toxic don’t get eaten other things that use it sponges they use identikit to make toxic compounds makes them distasteful worms and shrimp both use iodine in their bodies as they grow so adding some iodine can help your gorgonians they can help your shrimp it’s actually required for the skeleton of a shrimp and that’s one reason why you might consider dosing iodine another reason that you might consider dose iodine is something that I wasn’t able to find actual like science papers on but lots of references to it on forums if you have any blue acropora and it’s not looking very blue anymore you might have an iodine deficiency in your tank if you check your iodine it’s low bring it up to 0.06 parts per million and your blue Acropora might look more blue when you’re testing for iodine keep in mind that there are actually many different kinds of iodine in our seawater each test kit each brand of test kit tests in a slightly different way and so if you were to say use a I don’t know Kent marine let’s just make one up Kent Marine test kit and then you were to use a ATI test kit they would probably be using different chemistry to detect iodine and they would read different amounts because there are different types of iodine in your water at different levels the most consistent way to test for iodine then is use ICP analysis like a TI’s ICP analysis or triton these though are not particularly sensitive to iodine because iodine’s wavelength is very similar to phosphorous and if the ICP machine is just slightly out of calibration the phosphorous can sort of swamp out the iodine that’s in the water I hope this was an interesting let me know if you have any questions about iodine I’m happy to try to help you figure out what’s going on I will see you next week don’t forget to Like and subscribe bye

11 thoughts on “Iodine & Reef Aquariums

  1. Legit, was using YouTube looking into iodine, the coral banded shrimp I have had for a year that just finished a horrific molt losing all legs but one leg all of his claws two of his four entente and the other two are bent in freak angles and I know it’s almost 100% going to die but barely holding on. I’m externally bummed I never dosed iodine and never know about it till today when asking my local pet shop who specializes in saltwater shrimp and clowns. You vid was extremely informational and did shed light on my situation kinda sucks learning this way. Reality is my little buddy’s crippled because I didn’t do a water change during my normal schedule do to work and that probably is why he ran low on iodine along with the fact I don’t dose it

  2. Would be cool if you did a video on acropora or Montipora, my friends tank crashed and he rushed to give me two small frags that had turned brown I read up on how to slowly fix the coloring and encourage growth but still not 100% understanding the Acro is growing fast but still brown and the monti is well… darker brown

  3. I don't know how I have not seen your channel come across my feed before til today. Great video. I subscribed and now have a lot of your videos to catch up on. Keep up the good work!

  4. I like that you do the science side of things. A lot of people talk about what works, but not many know how or why what theyre doing, works.

  5. I have tested my tank and have high iodine and iodate but the iodide is spot on. I only dose potassium iodide, which I make myself from 99.9% potassium iodide. I have no idea where the iodine and iodate have come from can you please advise?

  6. What is a practical schedule to dose this I heard that nitrates and organics like to bind it up quickly and in tanks with higher nutrients dosing once isn't going to benefit it as much and even daily might be necessary

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