Problem with the glass in my tank

[Fr4nkthet4nk]

These are 2 pictures of what is going on with the glass in my tank. Please advise.

 

[UncommonSense]

I’m not seeing an issue here… maybe some coralline algae or filamentous algae growth on the viewing pane?

 

[Fr4nkthet4nk]

I’m not seeing an issue here… maybe some coralline algae or filamentous algae growth on the viewing pane?

I have tried to remove it, and nothing

 

[UncommonSense]

I have tried to remove it, and nothing

Is this tank glass, or acrylic?

 

[Isaac Alves]

Quick questions:

• Is it smooth or slimy? Or feels just like the glass surface?
• Does it come off with razor blade?
• If it's hard and colorless....are you dosing anything like Lanthanum?
  
  

 

[Fr4nkthet4nk]

Is this tank glass, or acrylic?

Glass. No, I can remove it.

 

[UncommonSense]

Glass

Try using a brand new razor blade, in an inconspicuous spot… (brand new blade every time, you’ll get defects in the blade as it’s used, and rust after use… it can then scratch the glass easier)

You should not hold the razor perpendicular to the glass, but at an angle… the razor can scratch the glass if you aren’t thoughtful about your strokes with it!

 

[Fr4nkthet4nk]

Try using a brand new razor blade, in an inconspicuous spot… (brand new blade every time, you’ll get defects in the blade as it’s used, and rust after use… it can then scratch the glass easier)

You should not hold the razor perpendicular to the glass, but at an angle… the razor can scratch the glass if you aren’t thoughtful about your strokes with it!

I have done that many times and nothing

 

[UncommonSense]

I have done that many times and nothing

Interesting! This may be more likely to be a dosing precipitate, then! — something I’m less experienced with…

 

[Rob A]

Try a Magic eraser

 

[Fr4nkthet4nk]

Try a Magic eraser

I did it too. hahahaha

 

[Timfish]

If it doesn't come off with a high grit lapping paper (4000 or 5000 grit) then for some reason the glass has probably oxadized. If that's the case you might contact the manufacter to get a warrenty replacement.