Sps getting brown tips ?

[Piece of reef]

Hey guys, so i bought my first acropora about 5 or 6 days ago from a local reefer closing down his tank. It called dallas acro here in australia, similar to the green slimer.

Its my first sps, i dipped in melafix before adding to the tank,
And it has been getting abit of brown algae or zooxanthellae? Or something on it

Not sure if its normal or if ive done something incorrect, or if its AEFW, would love some advice and hopefully a solution

Params are, as of 2 days ago

Temp - 78 steady
Ph - 8.0 steady
Nitrate - 5 steady
Phosphate- 0.1 fluctuates abit between 0.05- 0.1
Alk - 7.8 fluctuates abit between 7.5- 8.0
Calcium - 430 steady but trying to raise slowly to 450
Mag - 1350 steady

 

[Piece of reef]

Once I rid or reduced the number of Dino's in my tank (via removed all sand), my SPS coral no longer became covered on the tip with brown algae. My SPS's look amazing once I removed the sand bed.

Thats interesting, do u have bare bottom now ?

 

[Cscultho]

Thats interesting, do u have bare bottom now ?

Yes I will continue you have a bare bottom because I feel sand bottoms contribute to most of our problems in this hobby. if you aren’t on top of cleaning the substrate thoroughly every week nitrates go up and nuisance algae takes hold and we continue to find ways to battle the uglies and IMO it does more harm than good. And frankly, makes the hobby frustrating. I’ve been in the hobby for over 30yrs and most of if not all my issues were with my sand and its cleanliness and Dinos are the one issue I never could kick. I’ve tried all the methods to rid my tank of Dinos and nothing ever worked. Dinos hid deep in the sand and always outnumbered the “good” algae. Now without sand Dinos have few places to hid. I’m a happy reefer now!