Leaderboard

Letting go at $70. 350ml capacity. Collect Woodlands Dr 70.

Collection 373018 92954138

Let me chime in. There are some similar effects on sterilization, but ozone also have the ability to alter the water chemistry by oxidizing various compounds in the aquarium. For example it can breakdown some organics which can cause the water to appear yellow. Also the safety precaution between ozone and UV are rather different. Like what rob has described. It's important to have scrub off excess ozone before they escape into your room.

Visited this nice and decent tank, as good as new. Didn't observe any scratches on DT. Neat silicon finish done by CRA as usual. A pity that I don't have the ack for a frag tank for now. Pleasant seller !!!!! Sent from Singapore Reef Club mobile app

Forgotten Heros Part 2: Diatom Filters Imagine if you will a filter that is so fine it can polish your saltwater removing even bacteria. That, my fellow reefers is a diatomaceous earth (aka Diatom) filter. Now, the funny thing about a diatom filter is that, well, it isn't a filter per se. [Huh??] It is actually a natural powder made form fossilised algea (diatoms). The powder is added to a filter to reduce the size of the pores of that filter and is equivalent of adding millions of microscopic 'bio balls'. These microscopic particles (which are actually fossilised diatom shells) contain two holes, one that is approximately 3 micron in diameter and another 'inner pore' which is roughly 0.5micron in size. As such it's natural shape provides it with an ability to trap microscopic elements, producing simply stunning cleansing power. However, with such cleaning power this filter can easily get clogged up, as it basically polishes everything out of the water column. Hence running one aftee a series of progressively finer sediment filters or some fine carbon is recommended. There are special external diatom filter systems from likes of marineland, votrex, haywood that you can buy, or you can easily DIY using an rodi type filter as a base (a quick Google will return many designs). Either version allow you to add the powder to an existing filter solution. Unlike other weird and wonderful chemicals the diatomaceous earth powder is readily available (try pool supply shops). Note that there are two grades of powder; food grade or filter grade. Rich reefers tend to select food grade as it is more pure (risk of contaminants is lower) but there is still some debate on if it's really necessary, just make sure is 100% pure. Talking of the powder this stuff is super fine so you do not want to be breathing it into your lungs the use with a good N95 mask is recommended. (You can also wet down the powder a little). Whilst they have fallen out of fashion (reefer amnesia?) these filters are still widely used in the the pool cleaning, food and beverage industries where most Beer manufacturers use them. Now this is good news, as these 'filters' have continued to be refined overtime and have subsequently evolved since the 1980's when they were popular additions to aquariums. As such modern alternatives to the powder now exist in the form of Ceramic Diatomite Filters. These ceramic filters are now so fine it is possible to get them down to 0.1microns (to put that in perspective that is 2000 times more filtration power then your average reef sock!). They can be used just like a normal 10 inch filter or you can buy them in bricks. Either way they can be easily installed on the reef tank with an appropriate housing. These filters are not super expensive (sub $15) and work extremely well, too well infact, stripping everything haha. So keeping them clean is as mentioned a challenge plus you may need to supplement if you run them alot. Although the modern ones are reusable, my experience is that you can only reuse them effectively a few times and expect the same flow rates. However, the good news is that used ones can potentially be repurposed as bio media. So if you want to super-polish your water, drastically reduce the impact of an ich outbreak (free floating stage), use as part of a water recycling system or just want to experiment with powders / ceramics and a cool new piece of gear, maybe you will consider using a Diatom or the more modern Diatomite filter going forward(?). I wonder if anyone here is using them?? Either way, Happy Reefing!! Sent from Singapore Reef Club mobile app