AlmightyJoshaeus Posted December 3, 2016 Share Posted December 3, 2016 Well...can it? If I had a 2.5 gallon jar with mostly macroalgaes (and a light animal load, few/no corals), could I get away with doing 50% changes once a month if I stay on top of dosing carbonates as they deplete (as seems to happen when large concentrations of photosynthetic organisms are present)? Thankx in advance Link to comment
Muraki Posted December 6, 2016 Share Posted December 6, 2016 I would say yes to this from my experience. I run a larger system that is very similar, but with a sump that has the same amount of Refugium space as display space. Nitrates remain 0 for months. But my alkalinity drops rather quick even though I don't have many hard corals. I can only assume the macro algae is to blame. I also ran a 5 gallon with live rock in the past, only had macro algae, pom pom crabs and an urchin. Nitrates remain at 0 running the exact same way you mentioned above. Again, this is only from personal experience and the fact that I'm a little lazy on doing water changes. I was not keeping any LPS or SPS at the time, now that I am starting to, I have to ensure I dose regularly since I do not do regular water changes. I figured I would chime in since I could relate. Link to comment
AlmightyJoshaeus Posted December 7, 2016 Author Share Posted December 7, 2016 It is...they use alkalinity as a CO2 substitute for photosynthesis (nothing a little baking soda cannot fix). Anyhow, thankx! Link to comment
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