It has been a week and a half since I put in two Urchins. All hair algae GONE. It actually brought my rocks to almost white and pretty again. They have been bulldozers and i have to keep picking up frags..but the tank looks great again.
Sea hares are great but will eventually starve once food source is gone.
What kind of urchins do you have?
Good old fashioned Tuxedos.
I need to pick one up, if they accidentally run over coral frags can they kill it?
I am sure it is possible. I had it walk right over a new zoa plug and cleaned out the algae between polyps but left the polyps. It is just a known fact that newly placed frags will be dislodged when it decides to go that way. I would be more worried about not picking up the knocked over frags rather than them being eaten by the urchin. I am sure others online would be able to provide some additional anecdotal evidence..but never heard of them being a coral killer by trade.
I shall buy one for my 30 cause recently I’ve been getting a lot of hair algae and my hermits or snails don’t do much
UrchinsI have a 6 month old 25 gallon AIO tank. It is constantly struggling with green hair algae. I usually hold my nitrates between 2 - 8 and my phosphates between 0.05 - 0.15. I have a small refugium with chaeto and an Aquagadget refugium LED. I feed phyto and pods daily. I feed TDO and reef roids several times a week. My cleaning crew is made of astreas, nerites, nassarius, dwarf cerith, florida cerith, peppermint shrimp, and a pincushion urchin. I have 4 fish right now. My AI Nero 3 is set to ~1,500 GPH.
Also, here is my lighting schedule and spectrum settings for my AI prime.
Does anyone have any suggestions for mechanical filtration, herbivore fish, or clean up crew members that are effective against green hair algae?
Totally harmless. They will keep you coraline scraped off but it grows back.
