Világító akváriumi homok világít a sötét homokban Dísz homoki akvárium dekoráció Stone Sands rózsaszín arany kék

These crystals come in white but they do not turn sky blue as it says in the packet, they are a waste of money & would advice not to buy them,,, I was so looking forward to seeing my fish tank being blue,, but never happened !!

Goods received quickly via Deutsche Post. Unfortunately, it does not light up like in the item description ☹ Too bad...... Only the water changes color as a result, otherwise nothing special.

I don't know... I put the pellets in place and it doesn't have much of an effect on me, see attached photos. No video possible.. it doesn't give any effect sorry

It's far too small a quantity to do anything with. Packed in a little sachet, it looks like crystal meth.