Help identifying algal issue with SPS

[Ritual Aquatics]

Hey all,

I've had a handful of millie frags acclimating in my tank for the past ~6 weeks and they were entirely healthy and furry until about a week ago when I noticed a slight decline in coloration and extension. Seeing some growth ends beginning to cover in what looks like a dino? I can't tell and want to curtail the issue before it gains traction. Any able to identify/troubleshoot the issue here? Nitrates sit around 7.3ppm, Phosphate a little high but always has been (no skimmer on a 25G Waterbox), Ca at 450, Salinity 35.5 ppt, Temp sits about 24.6C. Dose 5mL of Algae Barn OceanMagik daily and feed Reef Chili 2/3 week at night.

Any help is much appreciated, thank you!

 

[Troylee]

What’s your alk sit at? Looks like a burnt tip from a alk spike and algae took over.

 

[Ritual Aquatics]

What’s your alk sit at? Looks like a burnt tip from a alk spike and algae took over.

Extremely consistently sits at 8.3. Is it possible it burnt during a water change...? Seems unlikely.

 

[Troylee]

Extremely consistently sits at 8.3. Is it possible it burnt during a water change...? Seems unlikely.

Doubtful… it could be flow or a fish nipped etc.. hard to really say.. you can just nip that tip off and let the coral rebuild! It works well for stubborn corals that don’t like to grow lol..

 

[Ritual Aquatics]

Doubtful… it could be flow or a fish nipped etc.. hard to really say.. you can just nip that tip off and let the coral rebuild! It works well for stubborn corals that don’t like to grow lol..

Possibly flow's too aggressive, you think?

 

[Troylee]

Possibly flow's too aggressive, you think?

For a tip? Sure if it’s direct flow. The pe going away and color fading could be a pest…

 

[Ritual Aquatics]

For a tip? Sure if it’s direct flow. The pe going away and color fading could be a pest...

Flow's probably a good call. I'll move this rack to a different glass panel and see what happens.