Not Sure If I Want To Add Anything Else...

[connorsbala]

Hey,
I break up from school on friday and like every half term, my dad takes me to wildwoods fish shop. I have an 18"x 12 " x 15", which is 12 UK gals off the top of my head (cant be bothered to go and get the calculator).
In there, ive got a pair of perculas and a couple of corals. Ill be gettign a load more corals like a hammer and frogspawn. If i see a fish that i like, such as a firefish or a banggai cardinal, could i get away with it? In there, ive got 2 powerheads obviously, a PF3 internal filter (made for a 3 foot tank) with phosphate remover, carbon and some ultimate filtration thing made by seachem which removes ammonia etc.
Would this be too much fish wise? Or could i get away with it? I do water changes once a week religously, without fail.

Here's a pic of my tank so far by the way after being setup for about 4 months

 

[AK77]

I would have thought you could put another fish in there without too much of a problem since you do a regular weekly water change anyway. I wouldn't recommend the Banggai though in a tank that small. There are a multitude of gobies that would fit the bill. Jawfish or firefish would also be ok as well.

Just be sure to keep an eye on your ammonia and nitrate levels also with the increased bioload.

A few examples of nano tank fish

 

[SkiFletch]

Agreed, I'd go with the firefish if you like them