Hello, I hope you guys can help? 
I started a 21 litre tank it is now 3 weeks old.
I had abit of a disaster with it to start with as I bought with the advice from the aquarium 2 guppies 4 cardinal tetras and two black Molly's to start it off.
the black Molly's were returned to the aquarium as they killed my two guppies and 2 of the cardinals.
In replacement again with the advise of the aquarium, I got two new guppies and four Rosie tetras.
This was within the first 3 days of having the tank.
Last weekend I visited the aquarium again and purchased two Rosie barbs.
I told the aquarium I was interested in the aquatic frogs and these bottom feeders which are black and white.
I had tried googling these bottom feeders to find out what they are called as I can't remember but can't find any pic similar really. Not with the same pattern anyway.
The aquarium explained I could have the frogs when my tank turned three weeks old along with the bottom feeders and then my tank will be fully stocked. So on Sunday I purchased the frogs and two of the bottom feeders.
So my tank consists now of two Rosie barbs, two cardinal tetras, two aquatic frogs, two guppies and 4 Rosie tetras.
A couple of days before putting the frogs and the bottom feeders in the water got quite cloudy and I was taking 10% out everyday and treating it with the stress and quick start drops as instructed but the water still hasn't cleared very much. The man at the aquarium said I could be over feeding the fish and to stop giving larger amounts and do a few small feeds a day, this should clear the water.
It isn't completely cloudy I can see through the tank but it isn't crystal clear.
I have a couple of queries.,
1) this evening I lost a bottom feeder. It was at the bottom of the tank dead, not sure why or what I have done wrong but I have only had them for 3 days!
2) the pink Rosie barb is the liveliest of them all and the largest, it seems to eat the majority of the food, I'm not confident the rest of the fish are getting enough or any in some cases which is why I have been putting more food in?
3) the frogs hide a lot and I haven't seen them eat yet?
4) am I doing everything right?
Please help!
				
			I started a 21 litre tank it is now 3 weeks old.
I had abit of a disaster with it to start with as I bought with the advice from the aquarium 2 guppies 4 cardinal tetras and two black Molly's to start it off.
the black Molly's were returned to the aquarium as they killed my two guppies and 2 of the cardinals.
In replacement again with the advise of the aquarium, I got two new guppies and four Rosie tetras.
This was within the first 3 days of having the tank.
Last weekend I visited the aquarium again and purchased two Rosie barbs.
I told the aquarium I was interested in the aquatic frogs and these bottom feeders which are black and white.
I had tried googling these bottom feeders to find out what they are called as I can't remember but can't find any pic similar really. Not with the same pattern anyway.
The aquarium explained I could have the frogs when my tank turned three weeks old along with the bottom feeders and then my tank will be fully stocked. So on Sunday I purchased the frogs and two of the bottom feeders.
So my tank consists now of two Rosie barbs, two cardinal tetras, two aquatic frogs, two guppies and 4 Rosie tetras.
A couple of days before putting the frogs and the bottom feeders in the water got quite cloudy and I was taking 10% out everyday and treating it with the stress and quick start drops as instructed but the water still hasn't cleared very much. The man at the aquarium said I could be over feeding the fish and to stop giving larger amounts and do a few small feeds a day, this should clear the water.
It isn't completely cloudy I can see through the tank but it isn't crystal clear.
I have a couple of queries.,
1) this evening I lost a bottom feeder. It was at the bottom of the tank dead, not sure why or what I have done wrong but I have only had them for 3 days!
2) the pink Rosie barb is the liveliest of them all and the largest, it seems to eat the majority of the food, I'm not confident the rest of the fish are getting enough or any in some cases which is why I have been putting more food in?
3) the frogs hide a lot and I haven't seen them eat yet?
4) am I doing everything right?
Please help!

	            