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I have two X-ray fish and one fish I am trying to identify at the moment (but I know is a guppy and is compatible with the X-rays. After one of my X-ray fish dying and me doing some research I realized that X-ray fish school!! I almost couldn't believe that it was recommended I triple my number of X-rays after the pet shop said I only needed 3. So I was wondering if X-rays only school with X-rays or if I could get a bit more variety in fish and maybe get some different types of tetras instead. Although X-rays are pretty cool :D. I only have a 10 gallon tank and the ph levels are currently (I measured today) at eight/liter which makes me a tad bit weary about bring new tank mates in. 

My 10 gallon freshwater fish tank needs another shot at life. It has not been cleaned for months, and has only underwent a few water changes without syphoning. Needless to say it needs some work but I don't even know where to begin. I have lots of supplies already, a $50 testing kit, bacterial supplements, a siphon and bucket, filters for my tank and am willing to buy more supplies as needed. Some history on the tank, I started with 6 fish and multiple shrimp who have even had babies that grew up healthy and happy until the conditions plummeted. Three fish have died and decomposed in the tank. All of the shrimp have died and also decomposed in the tank. I do not the circumstances of any of their deaths. Leaving me with three fish and one who has lost an eye. I am concerned about the other fish possibly eating the remains of their prior tank mates, but I fear it is too late to do anything about that. As am I also concerned about the fish who has lost an eye recently. In attempt to make my fish tank a haven as it once was I will appreciate any advice or recourses given to me. Thank you SO MUCH in advance!!!