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Steel glass scrapers - any tips, advice?

Malarky

Member
Joined
9 Nov 2022
Messages
121
Location
London
Can anyone give me their experience of metal glass scrapers (the kind with a blade and handle)? I see vids of people using these but maybe they are less precious about their sponsored glass, I am concerned about scratching mine. I have the Eheim version but I also notice there is an eye wateringly expensive ADA version. Also, how I am supposed to be using this tool? Lifting up at a narrow angle or pushing down which feels a bit more hazardous. I have used a Dennerle cleanator sponge up to now but thought I would experiment with one of these.
 
I’ve got a Qanvee one. It’s great, it does the job well when it comes to getting into the more difficult spots around your scape. It’s just a simple up and down while pushing the blade solidly into the glass - the handle flexes to remove force on the glass.

You have to be careful and deliberate about the motions as you want to avoid dragging the blade sideways across the glass lest you scratch it. That said, you really have to put force onto that sideways drag to scratch the glass.

If you ask me what is my favourite algae tool (you didn’t but I’ll say anyways ): An old credit card.

You can go wild and get large swathes of algae without worrying about scratches.
 
After using a JBL blade for sometime and finding it a bit awkward due to me having a small tank and the JBL requiring quite an angle, I took the plunge and bought an ADA mini razor. You can use it at a real small angle, and I find it’s really good for getting close behind the plants that are near to the glass. It can also get much closer to the corners than my previous razor, so I don’t have to work as hard with a toothbrush in the corners. I have found this joy to use, so useful, and it really surprised me how much easier it made my glass cleaning maintenance. The only negative is that you can quite easily break a blade. Also, it costs a lot 😂. I hope this helps 😀
 
I got an Aquapro branded one though I don't use it very often. The handle has to be near parallel to the glass otherwise the scraper chatters. Also have to be mindful of the light if near to the surface or the light fixture is particularly wide.

Most of the time I'll use a Mag-float or plain razor blade.
 
I use a combination of the Dennerle Cleanator sponge and a Fluval Razor scraper. The Fluval scraper is supplied with a screw on extension piece for the handle, making it great for my Oase Styleline and with the extension removed, works well in the Fluval Flex.
 
Dennerle Cleanator sponge

I've used these for years, they're very effective.

I also butchered one up, removing the wire pad from the sponge, and gluing it onto the end of a long handled cleaning pad so I can clean the glass all the way to the substrate without having to get up to my elbow in water.
 
I had exactly the same question previously only using the cleanator, toothbrush and credit cards. The top tip I was given by AG is to get a cheaper handle and the ADA blades as they are nice and flexible. I now own ADA equipment! A whole £5 worth 😄. Seems to work fine and no scratches yet
 
I use the Eheim scrapers and a Dennerle Cleanator. Both work well. Sadly the Eheim scraper doesn’t have a stainless steel blade (like the Tetra scraper) so I’ll need a new tip at some point.
 
I use the Eheim scrapers and a Dennerle Cleanator. Both work well. Sadly the Eheim scraper doesn’t have a stainless steel blade (like the Tetra scraper) so I’ll need a new tip at some point.
I use the same combination, the Eheim Scraper is around 10 years old now and still on the original blade although I tend to just use it down at substrate level and one or two hard to reach areas, the blade has a very slight tinge of rust but it's certainly not detrimental.
 
An old credit card.
I like this idea! I use a palette knife. I don't know if you've ever used a safety razor, but to me it's a similar concept - go slow, keep blade close to the glass/skin at a small angle, don't go for jolting sideways movement. The benefit of palette knives/credit cards is that they flex, so you can get them right up against the glass without the risk of snapping.
 
I use one that lets you mount your own common razor, which you can pick up in your local supermarket for a quid. As long as you stay clear of to the silicone and don't pick up sand with it, it won't do any damage.
 
I use an ADA one, but I also have an old vintage one I use with Stanley blades.

I can’t really tell much of a difference.
 
Blades on ADA are too thin, as a whole a little off balanced imo and everywhere that sells the blades charges £5 delivery …
 
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