Donate to the running of ReefBase

We don't display ads, and we don't charge suppliers. This allows free, unbiased speech and opinion. Any donation of any amount really helps with the running costs.

Donate £1.00 Donate £2.50 Donate £5.00 Donate £10.00 Donate £20.00 Donate another value

Green Coralline Algae??

0 Members and 1 Guest are viewing this topic. 297 views

  • Posts: 4
  • Liked: 0
  • Thanks Given: 2
  • Received: 0

Hi guys! I'm recently new to this hobby and I currently own a Red Sea Reefer Nano. I started cycling my tank just over two weeks ago and all seems to be going well! I noticed that over this past week dark green areas have been appearing on rock, especially one part in particular. Some further advice as to what this is would be great! Thanks.

HK_Fuey

  • Graeme
  • Administrator
  • Posts: 5,894
  • Liked: 1665
  • Thanks Given: 460
  • Received: 1380
  • Location: Newcastle
  • Tank Thread: https://reefbase.co.uk/members'-tanks-6/graeme's-6x2x2-840l/

Reply #1

Either the beginnings of green hair algae (gha) or maybe green cyano bacteria  :damn:  What are your nitrate and phosphate test results?

Jordan_C

  • Posts: 4
  • Liked: 0
  • Thanks Given: 2
  • Received: 0

Reply #2

Oh no!! 😩 My nitrates tend to be quite high as I'm part way through the cycle! Maybe 5-10ppm! But I haven't tested for phosphates as I don't have any equipment to test this (never thought I'd need to at this stage).

HK_Fuey

  • Graeme
  • Administrator
  • Posts: 5,894
  • Liked: 1665
  • Thanks Given: 460
  • Received: 1380
  • Location: Newcastle
  • Tank Thread: https://reefbase.co.uk/members'-tanks-6/graeme's-6x2x2-840l/

Reply #3

Don't worry.  You can do a water change now, and it won't affect the cycle.  The bacteria is on the sand, and rock surfaces, not in the water column.  10ppm isn't high though, so no rush.  As the tank stabilises, you'll probably get other algae outbreaks, and each will burn out as it uses up available nutrients, and other things start to eat it, or out compete it.

Jordan_C

  • Posts: 4
  • Liked: 0
  • Thanks Given: 2
  • Received: 0

Reply #4

Okay thank you! So at this point in time I don't need to worry about the algae on the rock attached in the pictures? It's just very different to the other algae being produced on the rocks within the tank. I use RO/DI water, with dry rock and used shrimp to start the ammonia production.

HK_Fuey

  • Graeme
  • Administrator
  • Posts: 5,894
  • Liked: 1665
  • Thanks Given: 460
  • Received: 1380
  • Location: Newcastle
  • Tank Thread: https://reefbase.co.uk/members'-tanks-6/graeme's-6x2x2-840l/

Reply #5

I'd leave it for now, and just make sure it doesn't start growing all over the place.  Some snails or hermits will take care of a small amount of algae when you add them.

How's the cycle going?

Thanks:


Jordan_C

  • Posts: 4
  • Liked: 0
  • Thanks Given: 2
  • Received: 0

Reply #6

Okay will do! I feel like it's going well, I have diatoms forming on the glass and sand bed now, ammonia has dropped close to zero, nitrites and reading higher than nitrates, but just waiting for nitrites to drop now!

HK_Fuey

  • Graeme
  • Administrator
  • Posts: 5,894
  • Liked: 1665
  • Thanks Given: 460
  • Received: 1380
  • Location: Newcastle
  • Tank Thread: https://reefbase.co.uk/members'-tanks-6/graeme's-6x2x2-840l/

Reply #7

Sounds good.  Just what you'd expect  :glad:

Thanks:


Tags:


Related Topics

5 Replies
1734 Views
Last post Dec 27, 2013 11:14:23 pm
by HK_Fuey
4 Replies
1160 Views
Last post Jun 8, 2015 12:47:46 am
by Vader
5 Replies
1171 Views
Last post Aug 5, 2015 9:19:38 am
by Mike
4 Replies
568 Views
Last post Jun 29, 2017 8:17:47 pm
by Asco1104
5 Replies
597 Views
Last post Aug 30, 2017 9:59:24 am
by Gav