I never used Erythromycin, but thanks for the informative video on whether to use and when, etc.

Maracyn is half the price. I used half the package on a 55gal over a year ago, first time I used it and haven't had cyanobacteria since.

If the cyano is the blue green variety, (and it can be blue- green, brown, or black in freshwater), I've found chemiclean works better long term. Erithromycin does seem to knock it back, but then it just comes back. As far as my research has gone, chemiclean is actually erithromycin but a different form-- chemiclean: erithromycin cetylsulfate, api erithromycin: erithromycin succinate.

You are right about the expense. It is absolutely crazy for no reason. The best cure is prevention. You have to find out why your system is out of balance. Maintain a balanced system and you will never see cyano bacteria. Admittedly balance is difficult to achieve but once you do your tanks will just roll right along. In over 40 years I have had CB outbreaks twice. In general the key IMO is to stop fiddling with our tanks so much and avoid all forms of chemical filtration other than carbon to occasionally remove tannins from the water if you must.

BTW, the purple fade at the end of the videos looks cool.

Never have it so , I don’t worry about it ..

When you treat for cyanobacteria you also need to treat your equipment such as nets, water changing equipment.

Any idea why u keep getting cyanobacteria? Iv never had it before

I used a chemiclean like product I found here in Australia, tried all the other methods blackouts, increased flow, manual removal even H2o2. Two treatments of this stuff called easy life green something or other it was gone never came back. We can’t get our hands on EM very easily here anyway so was never an option for me.

Tried it and it cleared my tail rot pretty quick :D

What about kanamycin (Kanaplex from SeaChem) for treating cyanobacteria? It says its cures fungal and bacterial infections (dropsy, popeye, fin/tail rot, septicemia)) and since cyanobacteria is a bacteria I'm guessing it will get rid of it. I got 4 packages from someone who quit the hobby and they expire this year so I want to use it up. I might try it tonight and see how that goes.

dan my green sunfish eggs HATCHED!!! im super exited what do i feed them tho

No disrespect to the youtuber. However I found the information i was looking for here in the comment section. The video’s 1st point on why E.M. Is a bad idea is that it wasn’t available. The 2nd point was that it was too expensive for large tanks but i have a 10gal and he didnt mention that the dosage amount is different from treating fish/Cyanobacteria. I honestly stopped and began reading the comments.

Yep. It's just too expensive 😒

Way to make a video about something you have zero experience with. “Why I don’t use E-Mycin? Because I haven’t and I’m too cheap to try it.”

Doesn’t each packet treat ten gallons?

dude, probably checks to make sure his fish arent drowning either

One box clears 100 gallons not sure what your talking about

#HeyEverybody