Diagnose slow decline

[Proteus]

Originally Posted by toytech

All the symptoms sound like the tank is too clean . No film algea for pods and snails to eat , no protiens for the skimmer to pull out . Cyanno and hair algea have a way of popping up and will probably go away as quick as they came . Maybe try running the skimmer less , feed a little more .

And. Possible that its not cyano buy diatoms. Which need to run its coarse