PeteK Posted May 3, 2022 Share Posted May 3, 2022 Hi - I promised my 10 year old daughter a fish tank for her birthday with the original intent to set up a small 5 gallon to house a betta. This would be our first aquarium in our home. I last kept an aquarium over 15 years ago. During our planning stages, our 5 gallon blew up to a 20 long which is now setup with a pretty castle and a yellow submarine, as well as some live aquarium plants. The suggested skull was vetoed. While we wait for some plant growth to help season the tank, my daughter is eyeing friendly fish to live along with the betta. Plans are to slowly add fish and some bottled bacteria once our plants appear to have taken hold for the next month. In the meantime I ran some water tests using some coop test strips. It turns out my water is running pH around 6.4, but is quite hard with a GH reading somewhere between 150 and 300ppm - its hard to tell which purple is which! Oh, but my KH looks to be less than 40ppm. My first concern is that with the low buffering, my water is going to have a pH drop over time that will be hard to control. Does it make sense to add crushed coral or something to buffer the water now, or is it better to just let it ride and see how the water responds over time? Also, fish choices - is it a strange combination to have hard but acidic water? Is this going to limit what fish we can use in the tank? Some original thoughts to join a betta would be some cories as well as some tetras or rasboras. Are any of these going to be bothered by the water hardness? What would be a good fish to start this fish in cycle with? I appreciate any advice you have! Link to comment Share on other sites More sharing options...
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