"Hard" algae...

[MaloK]

These specs says it all

A razor blade is sharpened at 7°-12°, With a thick beard you could stand 20°.

Held at 45° that's going to skip a lot. I mean the blade is 30° and more off cutting edge "best position"...

So I buy the cheap plastics one and melt the tip with a heat gun and make sure they solidify as I want.

Because for all the time I have been keeping aquariums. Not a single of these geniuses ever tried it. And even the stainless ones are exact replica.

And something that is worse is if your tanks are braced. you are going to hold them over 50°

And no one ever complained.

Yeah sure.

 

[TwoTankAmin]

My hands and arms are in tanks all the time. I have no issues using my hand and a razor blade. It is actually a better way to removed algae as it is as efficient as one can get in terms of removing the algae in one pass, especially the hard stuff. For softer I have pads, a pad on a stick and then the Kent long handle with all the various blades and then their short hand held handle which the same blades fit.

 

[MaloK]

Yeah but your arm has to slip in a one inch gap.

The best would be an Iphone holder with a modded blade holder head that is used from behind the stage.