- Joined
- Jan 5, 2020
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- 166
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- 142
hello all!
I'm having some strange algae issues that are leaving me a little stumped on how to proceed.
Background:
mixed reef heavy on the sps frags but some LPS too.
75g +25g sump
2x g4 xr30 no idea what par is but they're at 25%
2x mp40 reefcrest at 30-35%
BRS mini reactor filled with 2:1 carbon:gfo at ~200L/min ish
I dose KZ (AAC, AA LPS, CV, and sponge power) as well as some phyto and red sea AA 1x per week. I finally found a good routine that slowed the alage growth but now i want to get the last little bit gone but it always comes back. Also, I tried cutting this out entirely but a few SPS paled out and it ticked off my LPS.
parameters as of 12/20
ca: 420
alk: 8.3
mg: 1300
po4: 0.06
nitrate undetectable (but i think that's hanna user error)
problem:
in July I swapped my sand from a varied particle size to reefflakes. I did it rather slowly. Removing some sand week by week with water changes and slowly adding the reefflakes in. All was good for a few months. then this algae popped up on the sand only. I'll attach a picture too.
I don't have a lot of algae on the rocks and I clean the glass every 4 or so days since not much grows on there.
My question is two fold.
1. why is the alage no where else but the sand bed
2. is it a coincidence that the algae popped up soon after adding the sand?
any help would be awesome.
what would your next step be? is this a filtration issue or a CUC issue? My CUC could use a refresh.
I'm having some strange algae issues that are leaving me a little stumped on how to proceed.
Background:
mixed reef heavy on the sps frags but some LPS too.
75g +25g sump
2x g4 xr30 no idea what par is but they're at 25%
2x mp40 reefcrest at 30-35%
BRS mini reactor filled with 2:1 carbon:gfo at ~200L/min ish
I dose KZ (AAC, AA LPS, CV, and sponge power) as well as some phyto and red sea AA 1x per week. I finally found a good routine that slowed the alage growth but now i want to get the last little bit gone but it always comes back. Also, I tried cutting this out entirely but a few SPS paled out and it ticked off my LPS.
parameters as of 12/20
ca: 420
alk: 8.3
mg: 1300
po4: 0.06
nitrate undetectable (but i think that's hanna user error)
problem:
in July I swapped my sand from a varied particle size to reefflakes. I did it rather slowly. Removing some sand week by week with water changes and slowly adding the reefflakes in. All was good for a few months. then this algae popped up on the sand only. I'll attach a picture too.
I don't have a lot of algae on the rocks and I clean the glass every 4 or so days since not much grows on there.
My question is two fold.
1. why is the alage no where else but the sand bed
2. is it a coincidence that the algae popped up soon after adding the sand?
any help would be awesome.
what would your next step be? is this a filtration issue or a CUC issue? My CUC could use a refresh.