That sure is comforting. Thanks alot man. The only crappy thing is that the box of maracyn 2 comes w/24 packets. 2 packets for every 10 gallons for the first day and a packet for every gallon for the rest of the days treating, hmm. With a hospital tank of 55 gallons filled 4/5 of the way, that's 8 packets for the first day. 4 packets the second day, third day, forth, fifth.... Uh oh no more medicine..