PFS should work well.Thank you! I've heard pool filter sand is a good soft substrate for them. Do you think that would be ok? I'll definitely forgo the large species. As fascinated as I am by them, there's no way I could provide one with a happy and healthy home. I'm now set on one petersii as a solo-pet in a 55gallon. MAYBE a mystery snail with him, but I have a feeling he might bully the snail, so maybe not.
Could you recommend a good water testing kit that isn't too complicated to use?
I use either the API liquid test, or the API 5 tests in one strips.
I have A/B-ed them and found when compared are both in the ball park.


