usually better to have stable pH.. unless you have fish with a specific pH requirement
hard to say.. they could be pushing for territory.
pairs will liplock and some may break apart..
Rams in general are actually more likely
Ok thanks, glad I got to him in time I'm wondering how long he would of lived in tht bin if I didn't find him
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I would experiment with cutting your tap water (pure source, not treated or softened) with RO. Ideally it will be a simple dilution.
if you decide on the sun sun I'd recommend a mod to the pick or intake side.. they use cheap sectioned fittings that can draw air and the filter stops