hi im starting up a new freshwater fish tank for my flowerhorn and i decided on using sand for my substrate since it likes to dig alot,. i went into home depot and all i saw were 2 types of sand play sand and this i hear play sand isnt that great so this is what i bought instead,.i just wanna know before i clean it and put it in the tank if this is safe for the fishes and what are the best ways of cleaning it,.
heres a picture of the sand,.

heres a picture of the sand,.

