Brown algae out of control please help.

[sam2110]

Hi thanks for taking the time to read my post.

Brown algea taking over not sure what type. Tank is roughly 4 months old. Dosing nopox and running algae reactor. My gsp frag has not opend for 3 days. I have a monti branching frag that now has white patches all over. 25% water change every Saturday. Also running tunze 9001 skimmer and 9w UV. Feed fish once a day with a mixed diet it takes the fish less than 2 minutes to eat everything so I don't think I'm over feeding. Nitrate are sitting at 0 - 5ppm on API master test kit. KH is 9.1 ph is 8.4 - 8.6, temperature 25.5C. Magnesium 1410 and calcium 440. Lights are on daylight for 7hours and blues only at 10% power for 2 hours at night (9pm-11pm).

Does anyone have any ideas.

Thanks.

 

[ahiggins]

Youve completely stripped your tank of any nutrients. Diatoms are going to show up in new tanks regardless of nutrients-they “feed” on new silicone/tanks. So your algae scrubber, skimmer, and no pox has stripped everything out and your corals are dying. The tank is brand new, let it get stable and get some nitrates/phosphates before you run any reactors/skimmer/dose. Let your tank tell you what it needs.

 

[ahiggins]

It’s not me telling you what your tank needs-your corals are telling you but I’m interpreting it lol
The longer you’re in the hobby, the better you’ll be at diagnosing things right off the bat. Unfortunately most of my knowledge comes from my own mistakes lol

 

[sam2110]

It’s not me telling you what your tank needs-your corals are telling you but I’m interpreting it lol
The longer you’re in the hobby, the better you’ll be at diagnosing things right off the bat. Unfortunately most of my knowledge comes from my own mistakes lol

Thanks for you reply, I get what your saying so do you just think its diatoms, I had a flare of diatoms about 2 months ago and they all disappeared after 3 weeks. There was no algae for around 2 weeks and then this week this flare up started.

So you think I should stop the no pox. I have a candy cain, 2 hammers, zoas, and 2 acros that all seem fine the acro has gone a new branch in the couple of weeks it's been in the tank. The gsp and monti was covered in brown algae and I had to use turkey baster to clean them. How long can this bloom last and can diatoms kill corals?

 

[Reef.]

Feed the fish more frozen, I think you are going way to much over the top of trying to get your numbers to 0, nitrates and phosphate need to be in the tank, it’s a new tank, take your time and stop stressing and not sure if I said it but feed the fish more!