How to lower phosphates in Hang On Back filtered nano?

[zachtyd]

Hello! I have a 15 gallon column reef, everything is doing very well but my phosphates are at 3, yes 3!!! So I was wondering how to lower them? I have a hang on back filter for it meant for 50 gallons any way I can get that gross stuff out? Water changes aren’t doing it

 

[Katrina71]

@living_tribunal any tips?

 

[Gogi]

Run GFO in a filter bag in your filter. Replace regularly until you reach low levels.
If GFO isn't reducing fast enough, add dosing of lanthanum chloride.
Make sure the filter is clean of detritus.
Reduce feeding if possible.

 

[zachtyd]

Run GFO in a filter bag in your filter. Replace regularly until you reach low levels.
Make sure the filter is clean of detritus.
Reduce feeding if possible.

I feed every other day mysis and reef roids any way to combat the feeding?

 

[Gogi]

I feed every other day mysis and reef roids any way to combat the feeding?

The only thing you can really try is reducing it and trying to make sure there's not too much waste. But it sounds like you're not feeding a lot anyway.

Lanthanum chloride will take care of the high phosphate levels. I recommend you use it. If phosphates start climbing very high again, you can then investigate further.