all right every one we have all been in this situation i have a slowly splitting stand under a 75 and im almost dont with my DIY stand and fuge. and currently im having sum trouble with green hair alge and i added a yellow tang to help. im wanting somw advice do yall think that once i get the tank all the way down should i use a new tooth brock and scrub off all the alge or just leave it or what what would yall do if you had this dilima