Thanks for the advice, Lost.I have a 6" lawnmower in my frag tank. It has Removed all of the fine whispy filament types of algae from KP live rock including gha and rha. Left the Gorgs, halimedia and some broader leaf algae completely alone. They don't just pluck, their mouth actually scrapes the surface of the rock removing the algae from where it was growing. They can't get to the base in deep holes, but will do some a serious Work.
I cannot recommend two to a tank. I tried to qt two in the 40b at the same time. One killed the other So quickly I didn't even have an opportunity to respond. I may have had two males. There's a chance a male and a female would do fine together. I do not know so cannot recommend it.
Mike over at Dr. Reese quarantine fish. Pretty much always has them in stock, healthy And ready to ship.
I'm probably going to give it a try since I have them already for "free" from my freshwater tank.i feed saltwater mollys to my predator tank, ya they eat alge pretty good , worth a shot.
I have zero firsthand experience with any of those other types. I've gone LM every time and not regretted it.Thanks for the advice, Lost.
I'll keep the lawnmower blenny in my considerations for sure. I forgot with my earlier question that blennies typically do not fare well together or get along nicely.
I may try multiple approaches to this issue including mollies (I already have them very cheaply from my FW tank), blenny, foxfaces, hermit crabs/snails, and algae scrubber.
One more question: is the sailfin/lawn-mower blenny (Salarias fasciatus) the best/only option for effective green hair algae control, or would other types, such as redlip (Ophioblennius atlanticus), molly miller (Scartella cristata), bicolor (Ecsenius bicolor), starry (Salarias ramosus), black sailfin (Atrosalarias fuscus), or black combtooth (Ecsenius namiyei) blennies viable options for hair algae control?
[I know this is a broad question, but just wondering if there are other types that work as well]