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Water spots on outside of tank


Stella

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I have an aquarium that has water spots all over the outside, a bit like on a glass shower. Just like my glass shower, a rub with Mr Muscle doesn't do a thing ;)

I think it is from sitting outside in the weather for a long time (don't worry, I had it completely re-siliconed before using).

What can I do to get these off? Bear in mind that it is full of fish.

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one of the worst thing to leave on glass is water

Water contains line and the lime eat into the surface of the glass and distroys it. There are as TM mentioned, acid based product that will help but effectivley the surface is now damaged.

In showers after you have installed new glass, buy some polimer (brands include clear shield, force shield, CRL Glass, invisable shield is the one we use and even rainx (for car windscreens). Most of those products will cost around $20 to $30 and will last for many many years. diamond fusion is probably the best but at a cost of $250 plus to do just the shower, in my mind its simply not worth while. I use the above products on all my windows. It makes the glass slipery and the droplets cant hold onto the glass as mush so the residue is reduced.

Also ALWAYS USE A SQUEEGE AFTER EVERY SHOWER!!!!!!!!!!

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I had a light milky discolouration all over the glass of my 8' aquarium. It was about 25 years old and came from Rotorua which has quite hard water (lot's of lime). I fixed it by mechanically polishing it. I got some fine metal polish and spread it on the glass. As the tank was 8' long I decided to go with an electric buffing machine to do the hard work. The polish effectively cut the surface of the glass, removed the calcium staining and left the glass highly polished and as clear as the day it was made. If your tank is reasonably small you may elect to polish it by hand. You have to rub quite hard though...

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if you decide to polish, use Jewlers Rouge and a wollen buff and a VERY SLOW grinder or a heat bloom will occure giving rainbow effect. This sometimes show depending on light but if the surface is pitted, you will be grinding for hours and hours.

Warren... you were lucky or the film was extremely light

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In showers after you have installed new glass, buy some polimer (brands include clear shield, force shield, CRL Glass, invisable shield is the one we use and even rainx (for car windscreens).

I nearly crashed my car after using RainX for the first time. I was so mesmerised watching the rain beads streaming off the windscreen, I nearly ran off the road :oops: You don't need wipers for a few weeks after using it, rain just beads up and runs off :)

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if you decide to polish, use Jewlers Rouge and a wollen buff and a VERY SLOW grinder or a heat bloom will occure giving rainbow effect. This sometimes show depending on light but if the surface is pitted, you will be grinding for hours and hours.

Warren... you were lucky or the film was extremely light

It took all day - about 30 minutes to polish an area 300mm x 600mm. I used a woolen buff on slow speed. Heat was a problem as well. As long as the glass temperature only rose by about 25-30'C it was ok. At 55+'C the glass would crack. I had no problem with rainbowing... It also reduced the visibility of a couple of scratches as well.

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Yes

In general scratches are a problem as if you can feel them with your fingers, they are too deep to come out but buffing dose hide them

One of the problems I have in these things is that as its my trade, I expect probably a higher degree of prefection. A lot of the time, what I would think of as not suitable, most of the punters would think was good

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