Without actually reading, does it say the clams uptake the Nitrates, if so I swear it happened in my last system, high nitrates, added a clam and bam, much lower no3
Yes, it’s a little dense but the clams are using nitrate because their symbionts are extracellular (which is different from corals). Maybe that means they are more impacted by nitrate bottoming out? This extracellular set up may make them more impacted by all changes too.