by seth » Wed Jul 30, 2014 6:44 pm
Sure WC would be the most efficient way to lower nutrients but until you've found the underlying cause, tataas at tataas pa rin yan. And daily WCs is not a practical (and cost effective) approach especially for a tank that size. Unless makakuha ng malaking batch ng NSW sa dagat.
Have you tried counter-checking your testkit? Try testing a freshly mixed batch of saltwater or new nsw first.
Ilan ang total water volume mo? As in net water volume? Kung wala pang 75gal ang water volume mo tapos marami kang isda yun na ang reason diyan kung bakit ayaw bumaba ng nitrates mo.
Bro marami sa beach na macroalgae. I bet even sa palengke sa inyo may lato/ararusep. If you can, try looking for halymenia, gracillaria or caulerpa species like c. Serrulata, c. Racemosa, c.taxifolia etc.
Problema kasi medyo marami isda sa tank mo and sumpless ka pa. I suggest habulin mo yung water volume rather than putting in too much sand and rocks. Try to lessen the fish load as well. Then see if that would help.
If it still does not work, keep doing WCs and either get a refugium or dose carbon (vodka or vinegar). Baka magastos masyado ang purigen sa ganyang kalaking tank. It may help but it is also a short term solution.
Cheers,
Marty