Alternatively you could try adding multiple dwarf angels. I had 3 in a 90gal (flame, potter's, bicolor) that got along ok. Ironically the flame and my maroon clown did not and it was the clown that got the worst of it.
Spot on.
Synthetic mix keeps those compounds separated. It's why you have to add synthetic mix to the volume of water that you want to make into marine water instead of the other way around (ie. add mix up to desired SG not dilute mix down to desired SG) because it will form precipitate.
In the interest of reducing maintenance in dosing would it be possible to run freshwater spiked with magnesium (sulfate or chloride) through a kalk reactor to counteract magnesium depletion typical with calcium hydroxide use?
I'm no chemistry expert but I'm guessing that at least there will be...
Yeah BTA's usually like to anchor their feet underneath an overhang and then extend and expand out when the lights are on. It will probably try to find a location from which it can do it.
As far as the splitting, I have found that a shock of some sort (injury or change in environment)...
It can be one or both. If it is just one eye it is probably isolated trauma (ie scratch) whereas if it is both eyes it could be systemic, environmental, or trauma to both.
