firstly, don't worry, im planning to get very small beginner fish - tetras
how many tetras (or do you have another suggestion for fish) can i keep in a 10 gallon tank. 10 gallon because im a student and landlords don't allow anything, and cause tanks are expensive!
also, is there anything special i need for tetras, filters, heaters? is this the easiest fish or is there something else?
thank you!!
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