I see a small problem with the above formula, 2.5 mg per liter in a 125 gallon tank is only 1.1825 grams of Erythromycin. A packet from API is 2 grams (I think) or at least I know Furan 2, Triple Sulfa, etc. are all in 2 gram packet and there instruction states to use one packet per 10 gallons of water but I did see instruction for Cyanobacteria only bacterial fish infestations.
Unless I hear other wise I'll try the smaller amount but it seems off.
Edit: ok each packet from API is 200mg so I need 5.91 (6 packets) which is about half what is needed for fish infection, this number I can live with.
Edit: Please ignore this post altogether it has absolutely nothing to do with the treatment.
Last edited by 150EH; 02-15-2012 at 04:10 PM..