this is also one of the few hobbies where one day everything is doing fine and looking good and the next everything is dead and all that time and money is gone and all that is left is a nasty tank and epuipment thats not worth even half.so its also a risky hobby.lets not forget what these tanks do to our homes.you get a snail caught in a drain and bam your tank overflows and 15k in repairs are needed or more or salt creep destroying floors and walls.THIS HOBBY IS EXPENSIVE.