Hi Everyone! Someone was giving a 55 gallon aquarium free years ago. I had lots going on in my life so I did the basics, but not much more. I took the water to my local fish store once in a while to test. Did water changes when I remembered etc. My fish recently started getting sick. I got a master test kit, realized we crashed the nitrogen cycle and have now been learning everything I can. I think we are back on track. (I hope) I’m now here to learn everything I can so I can keep the remaining fish healthy and hopefully eventually add to their numbers.