Author Topic: What is scratching my tank glass?  (Read 978 times)

Offline Nigel-James

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What is scratching my tank glass?
« on: November 01, 2012, 09:26:40 PM »
I have a major problem.


Since I purchased my tank a few weeks ago I have been collecting scratches on the glass.


Everyday there are new scratches, they just keep coming.


I can not tell if the scratches are on the inside or the outside as I can not feel the scratches when I rub my finger across them so they are not deep.


Since I first bought the tank I have acquired around 20 different scratches on my glass, some short, some long, some straight, & some very odd shaped ones, it's totally random.


Now, I have not cleaned my tank with anything yet, no sponges, brushes clothes or anything so it's definitely not me.


The only thing I can possibly think of is that the snails I have in my tank are scratching it. The scratches actually look like a snails trail!


When I come back from work tomorrow I am guaranteed to have at least three more scratches somewhere.


I'm in need of help quick before my tank looks a complete mess!  :(
« Last Edit: November 01, 2012, 09:30:48 PM by Nigel-James »

Offline saddler

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Re: What is scratching my tank glass?
« Reply #1 on: November 01, 2012, 09:53:35 PM »
could it be sand scratching it on the snails?

Offline Blenk11

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Re: What is scratching my tank glass?
« Reply #2 on: November 01, 2012, 10:14:17 PM »
It can only be the snails I think, fish wont cause scratches.  Thing is though it takes quite a bit to scratch the tank glass..... I dont even know if snails could do it? very strange?

Offline vinboy

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Re: What is scratching my tank glass?
« Reply #3 on: November 01, 2012, 10:38:10 PM »
I was going to say NEVER use a alge magnet they only need the smallest grain i use a toothbrush on a stick :-[
Never known snails. Is somebody cleaning front glass?

Offline Taylor1410

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What is scratching my tank glass?
« Reply #4 on: November 01, 2012, 11:14:51 PM »
I was going to say NEVER use a alge magnet they only need the smallest grain i use a toothbrush on a stick :-[
Never known snails. Is somebody cleaning front glass?
I made the mistake of using a algae magnet :/ never ever again!!
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What is scratching my tank glass?
« Reply #4 on: November 01, 2012, 11:14:51 PM »

Offline Nigel-James

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Re: What is scratching my tank glass?
« Reply #5 on: November 01, 2012, 11:17:04 PM »
Ok, I have just studied the fish for a while (x4 Yellow labs) and what I noticed was that they were all swimming across the front of the glass and it looked as if they were grazing on the glass!!!


I know Mbuna have teeth, could this be the problem? It would explain a lot.


Although they have teeth are they sharp enough to make scratches?


I will post up a video of my tank soon.

Offline Nigel-James

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Re: What is scratching my tank glass?
« Reply #6 on: November 01, 2012, 11:18:17 PM »
Quote
I made the mistake of using a algae magnet :/ never ever again!!


I have not used a algae magnet on this tank as I don't own one.


Quote
Is somebody cleaning front glass?

It's only me & my partner in the house and I'm 100% sure she has not cleaned the glass.
« Last Edit: November 01, 2012, 11:22:05 PM by Nigel-James »

Offline Blenk11

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Re: What is scratching my tank glass?
« Reply #7 on: November 01, 2012, 11:20:41 PM »
I would say no, I dont think a yellow lab could cause this as they do it all the time in my tank and cause no scratches.

Offline Nigel-James

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Re: What is scratching my tank glass?
« Reply #8 on: November 01, 2012, 11:39:37 PM »
I totally agree with you blenk, I'm grasping at straws here so I'm blaming the sand/snails & fish but it would really take something to scratch the glass, and like you I don't believe they could do this much damage so quickly!


I have just taken some pics and when you see the way that some of the scratches are done you will be confused. It's as if it has been keyed.


They are not swirl scratches.

Offline Nigel-James

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Re: What is scratching my tank glass?
« Reply #9 on: November 01, 2012, 11:56:42 PM »
As you can see we have some funky shaped scratches. More and more appearing each day.




« Last Edit: November 02, 2012, 12:01:02 AM by Nigel-James »

Offline antoblfc

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Re: What is scratching my tank glass?
« Reply #10 on: November 01, 2012, 11:56:46 PM »
As far as i can make out there is only a couple of Africans that have Teeth on the outer gum.And Labs are not 1 of them.Do you have any Cynotilaphia Arfa as they have visible teeth.I find sand is the biggest cause of scratching.Check out this buggers Teeth


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Re: What is scratching my tank glass?
« Reply #10 on: November 01, 2012, 11:56:46 PM »

Offline Blenk11

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Re: What is scratching my tank glass?
« Reply #11 on: November 01, 2012, 11:59:45 PM »
Iv bashed my tanks with rocks and regularly clean with a green scrubber to get algae off and it leaves no scratches that's what makes this strange, it really does take quite a bit to scratch. 

I really cant see a fish leaving those scratches.  they look fairly deep.

Offline Nigel-James

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Re: What is scratching my tank glass?
« Reply #12 on: November 02, 2012, 12:02:42 AM »
Quote
Do you have any Cynotilaphia Arfa as they have visible teeth
No afras.  :(
Quote
I really cant see a fish leaving those scratches.
Me neither.
The scratches look deep but I can't feel them with my finger or nail. It looks like the majority of them are on the inside of the tank.
I have never been this confused.  :wacko:
« Last Edit: November 02, 2012, 12:05:24 AM by Nigel-James »

Offline Graham

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Re: What is scratching my tank glass?
« Reply #13 on: November 02, 2012, 01:52:45 AM »
Was it a brand new tank or second hand?


If second hand my guess would be that this is existing scratches coming to light as lime-scale is precipitating, the rough edge of the scratches acting as a focal point.  I see this all the time in my old fish-room tanks - I clean the glass and all looks good and then  as the weeks go by and the lime-scale precipitates they become apparent again.

If a new tank then I'm at a complete loss for suggestions.

Offline Tamrissa

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Re: What is scratching my tank glass?
« Reply #14 on: November 02, 2012, 02:03:14 AM »
wow holy scratches!! i know one friend said his cleaner sucker fish ha da tooth and would leave marks on his tank never knew snails would but i guess it could.. geesh sorry thats going on.. maybe talk to your partner and ask just to double check?


btw i have magfloats and use them fine but i never put them low enough to touch sand to get sand in it since i know for a fact my black sands magnetic.  i use a green bristle sponge thingy on a long arm you can change the blades out to scrapers on it but i never scrape the tank. 

just gotta be extra careful, remove all watches  rings necklaces that might clunk against the glass when working in or on the tank... watch zippers and buttons on pants and hoodies and whatnot too!
« Last Edit: November 02, 2012, 02:12:41 AM by Tamrissa »
If wishes were fishes, I'd need a bigger tank!

Offline Nigel-James

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Re: What is scratching my tank glass?
« Reply #15 on: November 02, 2012, 08:08:25 PM »
Thanks for all the help and advice guys.

What caused the scratches could be any of the things you all suggested.

Looking at the tank today it does not seem like they have got any worse.

The tank is second hand and perhaps Graham is right in that the scratches were already there but not visable until now when limescale has surfaced making them more of a eye-sore.

Will have to live with it. Not the end of the world.  :)

Thanks all

Offline Tamrissa

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Re: What is scratching my tank glass?
« Reply #16 on: November 02, 2012, 08:15:20 PM »
is the other side the same?  maybe you can turn it around.
If wishes were fishes, I'd need a bigger tank!

Offline Graham

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Re: What is scratching my tank glass?
« Reply #17 on: November 02, 2012, 09:17:25 PM »
You can get stuff to polish out scratches in glass.  Basically it's a cerium oxide paste and you use a polishing pad on a power drill to slooooooowly polish out the scratch.  You can get the paste alone or complete kits off Amazon.


I've never tried it myself though.  I think it's something that requires a good bit of skill and a lot of patience because if you rush it there is a risk of making things worse.  I guess you'd want to practise on a scratch or two on the back of the tank or something first.

Might be something to file away in the back of your head in case you ever have cause to strip down the tank.

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Re: What is scratching my tank glass?
« Reply #17 on: November 02, 2012, 09:17:25 PM »

Offline chris19

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Re: What is scratching my tank glass?
« Reply #18 on: November 02, 2012, 11:15:54 PM »
Is your tank acrylic? They can scratch a lot easier than glass can and it could really be something as simple as a snail maybe with grains of sand stuck under it as it slides to do it? If it is the snails I recommend just putting a piece of lettuce in the tank, leaving it over night when you come back in the morning it should have all the snails on it so just throw it away! Goodluck!

Offline Yankee

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Re: What is scratching my tank glass?
« Reply #19 on: November 03, 2012, 12:37:57 AM »
Regarding the strange scratches: Contact the manufacturer of you tank if you bought it new and explain the situation. Their input may be helpful.
I know you said you haven't used an algal scraper, so this is in response to Taylor's comment. I agree that magnetic algal scrubbers can cause damage with one grain of sand lodged in the cleaning surface.  Using one of those devices is the only thing that has ever scratched my glass--and quite badly. Since then, I use a hand and soft piece of filter pad to remove algae. I use a new paint scraping razor blade to gently scrape away very difficult deposits on the glass. You can buy a little plastic holder for the blade which makes it easier to hold. See the photo. This method has never caused any scratches for me if the blade is held a low angle and applied gently.


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« Last Edit: November 03, 2012, 01:07:48 AM by Yankee »