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Both would help i suppos but if using chemicals when you have substrate and plants in place i would use hydrogen peroxide. However in your current situation a bit of elbow grease and a scrubbing pad will remove it all in no time.
[QUOTE="milla, post: 610780, However in your current situation a bit of elbow grease and a scrubbing pad will remove it all in no time.
[/QUOTE]
Yeah, I have given that a go already. It just won't shift, seems to be embedded in the silicon. Cotton bud in liquid CO2 directly onto area? Then carefully clean area afterwards? I'm worried about chemicals leaching into substrate. Not tried anything like this before
I have tried physically removing it, including using an electric toothbrush. It's a 15 year old tank that's been in constant use all of that time. The silicon is embedded with algae, I need a chemical solution. Cheers.
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