Would a Marineland Penguin 100 BIO-Wheel Power Filter be good? it is $20 on the petco site. I see that it is good for up to 20G tanks and I assume a $10 is definitely workable? I asked a pet shop guy and he said with that filter I wouldn't need to get an air pump. he also said 1-2 comet goldfish should be fine for a 10G tank.
Is a comet goldfish one of the common goldfish types or is it different?
I am probably gonna get the $10 10G tank this month before the sale is over.
For doing the cycling of the tank what fish is recommended? Would a 10 cent comet goldfish not work since they produce a lot of poop and ammonia as you mentioned? Is there any other fish that are that cheap that i could use instead? for cycling the tank?
Is there any good bottom feeder I should get to help keep the tank clean of left over food/poop to reduce the need for siphoning gravel? If it is possible, I want a self sustaining environment for the fish with minimal work needed past changing the water, filter and cleaning the glass on occasion.
If I recall correctly, you can only have 1 betta fish per environment, correct? If you have more than 1 betta they will fight and kill each other? How does breeding work? could I have 1 male and 1 female in the same tank it was big enough?
