I'm so sorry to post this, as I reviewed countless posts in an effort to answer this question ... and did several Internet searches. I have a 135 Gal
Salt/Aggressive tank with no live rock. Although my other fish [obviously] produce waste, my puffer lets out some rather large, brownish-red "dumps." I have tried to clean the sand, to the best of my ability, with fish nets ... but it is a laborious process and fairly ineffective. vacuum's won't work, as the particles are too fine and I have not come across any other solution (I bought a Hawaiian Goat, but it only lasted a week or so before it was killed).
I'm sure there is a trick that I have not come across and I would appreciate some insight, should someone have a moment. Also, I was considering putting in black, igneous sand into the tank to bring out the color of the fish/coral. Please let me know, if there are any words of caution.