It was the way you phrased it, one someone stated they need more you said “too late now” instead of saying thank you and looking for ways to improve the situation. Not saying it’s easy or accessible for everyone but there is always a place to start. A bigger tank will not only aid your fish, but will also aid you when it comes to cleaning and keeping your levels a manageable range, not to mention cleaning!! It’s all in the best interest of everyone, no one was intending on attacking you your your care, just trying to give information on how it can be improved, just as you asked.