Have you heard anything about Rena Filstar Canister filters? Will one canister keep the water crystal clear with regular water changes and cleaning?
Never heard of its efficiency. One canister is ok. Just do 20% water changes weekly.
Let me know what fish you have and I'll try to sort out the schedule for you. Some fish poop a lot. More poop means more ammonia added. Without the beneficial bacteria, ammonia will increase which is toxic to the fish as the BB was supposed to convert them into nitrites. Then into nitrates which is the most harmless of the three.
Buy a test kit and pure ammonia. You need to cycle the tank first. Pure ammonia is available in the pharmacies or chemists.
Fishless Cycling manual is now available. It's in the sticky.
You may try cycling using zebra danios or platies but I wouldn't do that as that can be stressing for the fish.