Raising Nitrate without raising Phosphate

CoralDanimal

Active Member
View Badges
Joined
Apr 19, 2017
Messages
304
Reaction score
313
Location
Bay Area
Rating - 0%
0   0   0
I currently have .018 phosphates in my 30 gallon with no detectable nitrates and I do have some nuisance algae. I have a small patch of green hair algae and then some bryopsis growing in a couple of spots. I actually have a large refugium with a kessil H380 in my sump which has chaeto growing like wild in it.

I've read on R2R (but don't understand) this concept that if I were to raise my nitrates, this would in some way help the algae situation. Is this true? I'm not a chemist so if it is true, I'd love if someone could explain it to me like a 5 year old (or potentially 10 year old :D). Also, it's unclear to me how one would raise nitrates without raising phosphates (my understanding is feeding more would raise both).

The reason I ask is that I want to find a way to resolve this outside of buying a fish (my tank is too small for most algae eaters). I do have GFO, but I've been hesitant to use it because I don't want to wipe out the chaeto in my fuge.

Any help would be much appreciated!
 
You can raise only nitrate by dosing nitrate (e.g., stump remover, Seachem Flourish Nitrogen, etc.). You could light your refugium for a longer photoperiod, giving your macroalgae a better chance at assimilating those extra nutrients which are currently feeding your nuisance algae.
 
calcium nitrate available at feed and seed store would be a good way to increase nitrate.

my .02
 
Thanks everyone! I've ordered the stump remover and (after proper dilution) I'm going to start dosing a very, very low amount every day while testing nitrates every day to try and be as calculated about this as possible. Any other advice is still welcome though.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%
Back
Top