She can’t find a test kit locally, and at 14, can’t get them online right now. She’s been trying to find a kit, she’s in India, and has asked repeatedly for advice on a kit she can afford. I’m willing to bet at her age, she doesn’t have a credit/ debit card, or a job to afford to buy a kit. Read her profile, and all her posts. It gives a lot of info if you read through the lines.
that may all be true, Jamie, but how then are we to help? More like guessing and hoping, educated though the guesses might be.
Short of starting over and giving her a fool-proof guide on how to keep fish, something here has to give. She's throwing darts now with the garlic soaking, etc. I mean, I raised a lot of tropicals in many size aquariums when I was growing up, had some issues and at the time, didn't know what I was really doing. Sometimes I had books that I used to get an idea, then I treated. Other times, the fish died and I chalked it up to a lesson learned, whatever it was.
She's wanting us to determine issues from insufficient data (including pics as the ones posted don't show what she's describing --the black lines, etc), and doing so in a totally insufficient environment. People have micro aquariums (usually saltwater, btw) and they're EXPERTS doing it, not beginners. They KNOW what to do, what to look for. You can't have success in fringe areas like this unless you DO understand. I don't see that here, so she's better off starting over with NEW, SMALL (and I mean when fully grown) tropical fish, with a dedicated filter that can be easily cleaned. And she still has to have SOME knowledge of exactly the water quality she's starting with. If the source water is high/low in anything, it's going to affect her aquarium. And how is she to know that if not without a test kit? Or at least info from some knowledgeable person who knows these answers. Maybe her water is so off parameter that she's going to need ph balancers, gh/kh additions/subtractions. Only she's going to know this (or someone in her region). Too many variables and I feel her pain because she cares about her fish but it doesn't seem that her pet supply place is being anything but un-helpful. Not a good place to be.
She needs someone in her country that has had success to at least give her a fighting chance/starting point, be it aquarium size or water parameters.