http/www.warehouse-aquatics.co.uk/gravel-substrates-rock/caribsea-aragonite-oolite-sugar-sand-30lb-p-5005.html
Is this suitable or is it for marine ?
Any correspondence greatly appreciated
The snad you have a link for is marine sand. If your looking at African rift lake cichlids you'll be fine. It will raise the ph up to about 8.2 or so. Its not much different than coral sand.