BigBarnacles
New member
Well, my 75 gal mixed reef is coming up on its one year anniversary in March. Six months through I decided to switch from Phosban to BRS high capacity GFO to see what really worked better. I would give them both a six month run and take po4 tests weekly. Now, obviously this test isn't 100% scientific as the tank hasn't remained the same as far as fish and corals go. As far as the lighting, temp, amount of rock, water flow and feedings go everything has remained stable and nearly identical.
The result...Phosban has performed significantly better considering it had po4 leaching from the pukani dry rock to deal with. Po4 with Phosban ranged from 0.00-0.04 at worst. It was most often tested at levels of 0.00-0.01. The BRS high capacity GFO ranged from 0.01-0.10 with most often tested levels being 0.02-0.05. Algae has also been an issue with the BRS GFO and the tank did experience a cyano outbreak one month after switching to BRS GFO.
Hanna digital po4 tester was used for both forms of GFO and both were run through the same TLF reactor with the same recommended flow.
It should be noted that the BRS high capacity GFO also lasted a shorter amount of time compared to Phosban by an average of two to three weeks.
The result...Phosban has performed significantly better considering it had po4 leaching from the pukani dry rock to deal with. Po4 with Phosban ranged from 0.00-0.04 at worst. It was most often tested at levels of 0.00-0.01. The BRS high capacity GFO ranged from 0.01-0.10 with most often tested levels being 0.02-0.05. Algae has also been an issue with the BRS GFO and the tank did experience a cyano outbreak one month after switching to BRS GFO.
Hanna digital po4 tester was used for both forms of GFO and both were run through the same TLF reactor with the same recommended flow.
It should be noted that the BRS high capacity GFO also lasted a shorter amount of time compared to Phosban by an average of two to three weeks.