This thread is meant for all aquarists-- from the newest newbie, to the oldest veteran.
Three months into my first aquarium, there is one thought that has crossed my mind more than any other: "next time I build a tank..."
This is your opportunity to share with others some of the lessons you've learned from the school of hard knocks. What is one thing you would do differently if you had to start all over again?
Seeing as how this is my thread, I thought I should be one of the first to reply. If I could do it all over again, I would stay as far away as I could from the "all-in-one" kits. I thought it would save me money. But like my dad used to say: "if something looks too good to be true, then it probably is." I've already replaced the filter and I can't wait to get a new hood and lights (because the ones it came with fall in the tank every time I try to do a water change!) And the "bonus food and dechlorinator" it came with--they're about as big as a trial size package of shampoo!
I would have not taken over a tank from someone else without knowing what fish were in it.
I would not have bought fish on impulse.
I would stop taking in small tanks for free and feeling obligated to set them up