Is the 3 fish compatible to a each other

[duncantse]

1. I have purchased a tomato clownfish, bicolor angelfish, and a domino damselfish during the boxing week. Those 3 fishes are all in the same tank at the store. (I was watching the 3 fishes and I dont think they fight) I asked the store to keep my fish because I'm only halfway through my cycle. I have a 20 gallon tank. Is the 3 fish compatible to a each other? And if its not, will the store let me have a refund?

2. These are my current levels.

Ammonia= 2
Nitrite= 1
Nitrate= 30
Salinity level= 1.024
pH= 7.8
5.5lbs of live rock
10kg of crushed coral (sand)

Can someone predict how long my cycle will complete?

3. If I currently have 5.5lbs of live rock in my tank, how much more live rocks do I need for a 20 gallon?

4. Does a marine tank need air stones? I currently have a 1inch ball for airstone.

 

[Jimbo7]

1. In that small of a tank, the clown and the damsel may not get along. The bicolor in itself is going to be too big for that tank. They need at least a 30 gallon tank with lots of swimming room.

2. Cycles usually take 4 weeks, looks like you are on track.

3. It is recommended that you have 1-1.5 lbs live rock per gallon

4. Nope, just make sure it has good enough flow so the proper exchange can happen.

 

[duncantse]

So the 3 fishes won't get along? That sucks, can I refund it then?
Wow, 1-1.5lbs of live rock per gallon... that will cost me a lot of money.

 

[Krypt]

You should be able to get your money back.

 

[duncantse]

yaah thats a relief then
instead of those 3 fishes what would you guys recommend for starter fishes that can fit in 20 gallon?

 

[Jimbo7]

A pair of clowns and a small goby or jawfish is always a good combo. Check liveaquaria.com, they have a pretty good "nano section" that has a list of acceptable sized fish. They also have a compatibility chart that will show if what you want will get along.

 

[iDream]

you could always buy dry rock and add it, it's cheaper to purchase and will become live eventually