For the past few weeks I've had an algae bloom which started with the purchase of new Jebao wp-25 that blew my sand around everywhere and on the LR all around that side it's now covered in what I'm guessing is turf algae maybe ? But anyhow its getting worse and worse daily, i've done several 15-25% WC some even twice a week. I've checked nitrates, phosphates and coming up 0 but I know could be using them and unable to test for them. Any ideas on anything else I could do? Remove sandbed ? I'm running rowaphos in reactor 24/7 and cut lighting in half and feeding smaller amounts every other day and have vacuumed the heck outta the sandbed and changed filters in Ro/di unit. Thanks for any ideas !!! I'll add pics of the problem