Not surprising about the lawnmower, they actually don't really care for filamentous algae so much as the film kind of algae you get on the glass (look for the kiss marks :) ).

I forget what size your tank is Dan but a couple options I've found that seem to work well for me are urchins and abalones. A diadema urchin does a pretty good job but needs a LOT of space (you can get them small but it doesn't take them long to get big). Another option that has worked *incredibly* well for me is a green urchin. No idea on the species ID, looks just like a blue tuxedo but uniformly green. Anytime I've tried to google them all I find is coldwater species though, this is not a coldwater species though (sorry I realize that's not terribly helpful).

I think they don't like older HA if plucked dothey eat the new stuff. a sea hare will do the job as mentched already either pass it on or return it to LFS.

I know a flame angle and the hippo should eat it. get some hermits I have found the red leged ones eat it better even knowing the blue leged hermits are suposto be the better algea eaters.

Bill

I have a 150g tank, 5'x2'x2'. ya the lawnmower LOVES the film on the glass.. guess I was remembering Film algae as Filamentous??? The others, don';t seem to try it even after pruning. But I will try some more. Think a Fast, before I prune will help?? Probelem is I have Clowns, banggai, Angels and a Goby in there to, which nee more than algae. I dont want to starve them, in order to get the tang's to eat the algae. Would a Foxface make an attempt???

Dan, had the sam issue. I mean hair that was like 6-8 inches in some spots. Hit it with manual pruning, sea hare worked awesome, but at the same time I added alot of rowa phos to the system, by way of a tlf reactor, and shut my lights off for three days once the sea hare was acclimated. Im in Van right now by the way, so I may be able to bring something back for you when I get sick of traffick and head north again!

I find that my foxface rabbit fish does a good job on the HA.

Not trying to hijack
 

My hair algae that I am fighting with right now doesn't grow very long. Maybe 1/2 inch.... I am beginning to think it might not be hair algae. Any ideas? I could send a picture.

Thanks

Glenn

I use boiling water with a syringe,I heard about it and it works great,boil some water suck it up with a syringe,and squirt it at the base of the hair alage,in a day it will be gone,I had a few rocks that I took out,and poured boiling water over the alage,and it hasn't came back,I found that after the boiling water treament my bicolour angle eats the dying hair alage,it works great for me,try it it can't hurt.

if your coming through i could lend you my diadema urchin

Tuxedo urchins work well for me at eating bryopsis. The sides of my refugium have become an algae turf scrubber so I have 3 tuxedos in there to keep it clean so that I dont have to. I'm going to try a turbo snail or two this week to see if they will touch the patches growing in my display tank.

My foxface and my naso tang like to eat it.