I am currently cycling my new 750litre. The tank came with black and red gravel I think it's flourite. The gravel peices are too big (about 1-1.5cm) I am going to be doing a heavily planted tank and planting in it will be a pain. I'm planning to just add a layer (4-5cm) on top of the existing substrate.
I know of people using black diamond blasting sand however that is not available where I live. I would need fo buy a different brand.
Is there any risks with blasting sand not being fish safe?
Posted by moonimoosh
1 Comment
It might be made of silica, the blasting media we use at work is silica based. There’s also glass bead blasting media too.
If I was you, id look for pool filter sand, its dirt cheap (pun intended) and usually quite clean, (cause its for filters) so there’s less washing before use.
I picked up a 25kg bag for less than 5 dollars at the local hardware store