All's been going well and I took a reading just now as routine, PH 7.8, Ammonia 0, Nitrite 0 but Nitrate 40! I immediately did a water change about 50-60%. It's probably my impatience again, gonna need to lock up that spirulina container for a month and throw away the key!
I've seen a molted exoskeleton last week so I guessed water was fine... Should I get more marimo balls and chaeto to help reduce nitrate? I've read plants absorb it but do they since they're technically algae?