Long 30 tank under gravel filter with 2 lifter tubes and 1 power head, fluval 3 plus in tank filter(because under gravel cant keep water clear)
Don't use a under gravel filter-Activated carbon is not necessary to keep your tank healthy in freshwater applications use only in special situations-like if you spill something in your tank
1 Common goldfish approx 6 inches long
1 Zebra Daino
6 Giant Danio
1 Chinese aglae eater
two birds with one stone
When you see signs of stress in your fish, you can then take steps to identify the source of that stress and then to resolve it before it becomes a major issue.
If you're looking for a unique way to stock your new tank, give freshwater shrimp a try.
If your fish is suffering, you may want to consider euthanasia as an option to humanely end his pain.