Nutrient export

gms1234

New Member
View Badges
Joined
Jun 20, 2023
Messages
20
Reaction score
6
Location
Australia
Rating - 0%
0   0   0
Hi All,
After some advice.

Currently have 200gal tank, SPS dominant mixed reef.
Having some nutrient export issues.

Heavy stocked.
Have redsea 900 (with co2 scrubber), running dry, have turn to run wet, 1/4 turn from full height.
large algae reactor with handful of cheto (16hrs light, reverse cycle),
gfo reactor,
nopox dose 20ml / day.
reef mat 500 going through roll a week, stated doing this since nopox dosing few months ago
tank turnover via sump just over 3 times.

parameters
alk 8.5
ca 450
mg 1380
ph 8-8.3
no3 - 19
po4 - 0.06

dosing
30ml ab+
cheto grow (no no3 or po4)
ATI essentials pro
phytoplankton
feed 2x day brine shrimp (could easily double)
1 algae sheet per day.

Id like to reduce my roller mat usage which seems to be linked to the nopox dosing and ideally stop nopox dosing all togeather.
Id also like to reduce my nitrate down to below 5.
 

bobnicaragua

Valuable Member
View Badges
Joined
Nov 28, 2019
Messages
1,205
Reaction score
1,295
Location
Dallas, TX
Rating - 0%
0   0   0
Turning up the light or adding another light to your algae reactor will increase efficacy.
 

Randy Holmes-Farley

Reef Chemist
View Badges
Joined
Sep 5, 2014
Messages
72,100
Reaction score
69,741
Location
Massachusetts, United States
Rating - 0%
0   0   0
Have you trued just stopping the roller mat and see what happens?

Nitrate below 5 ppm is certainly attainable, but may not accomplish anything significant in terms of tank appearance/health.
 

I never finish anythi

Valuable Member
View Badges
Joined
Aug 11, 2022
Messages
1,409
Reaction score
2,867
Location
Wales
Rating - 0%
0   0   0
Upgrade the reef mat to the 1200 . The 500 is undersized for a 200g tank . It's recommended up to 500 litres
 

I never finish anythi

Valuable Member
View Badges
Joined
Aug 11, 2022
Messages
1,409
Reaction score
2,867
Location
Wales
Rating - 0%
0   0   0
Biggest one seems to be the filter paper usage which seems to be related to nopox dosing with a bit of slime it creates. Trying to get nitrates down from 20.
How much water are you pushing through the reef mat . A 500 is not the best for a 200g tank tbh.
 

bobnicaragua

Valuable Member
View Badges
Joined
Nov 28, 2019
Messages
1,205
Reaction score
1,295
Location
Dallas, TX
Rating - 0%
0   0   0
I run a refugium on my SPS tank and it does a great job at keeping my nitrates low. If I turn up the lights too much, nitrates will 0 out.

I still say increase your algae scrubber lighting and your nitrates will fall.
 

Spare time

10K Club member
View Badges
Joined
Apr 12, 2019
Messages
13,208
Reaction score
10,672
Location
Here
Rating - 0%
0   0   0
I'd stop the nopox to fix the slime issue. You can lower the amount of reef energy if nitrates are a concern, but the numbers you have are fine. Nitrate less than 5ppm can be unstable and unhealthy.
 
Back
Top