Dino’s ?

[TheWB]

Doesn't look like dinos to me. Your nerite snails are laying eggs rather profusely!

Thank you. Any thoughts on what it might be? Tank has been running since late January and has had fish since June, I did a long cycle. This is the first major outbreak of algae I’ve had. I’ve fed pretty heavy and the parameters are a little high but aren’t way out of control.

 

[saltyhog]

Nothing wrong with your parameters if that's where they've been all along. How old is your tank? Do you have access to a microscope?

 

[TheWB]

Nothing wrong with your parameters if that's where they've been all along. How old is your tank? Do you have access to a microscope?

I do not have access to a microscope. The tank has been wet since January of this year. First fish went in in late May or early June. 2 clowns, 2 zebra bar dartfish, 1 orange back fairy wrasse. Only 3 corals in there, zoas, micromusa, Favia. I have fed pretty heavily to keep the fish happy and the nutrients have been up and down. Feeding will be cut down going forward. Usually do a 4.5 gallon water change once a week. 37 total gallons in the system. I did change 9 gallons last week to lower nutrients. Will go back to 4.5 gal change this week, I don’t want to bottom out N or P completely.

 

[Bret Brinkmann]

With nutrient levels like those I can't see it being dinos. Probably diatoms and green algae. I recommend herbivores to help keep it all under control. Looks like you have some already. If you are interested in more snails, then I recommend cerith snails because they go all over including the sandbed.