Lol!

The 70p fish are most probably tetras as they are small, fairly common fish and therefore tend to be cheaper (or so it seems in my lfs's). For example, just today I got a shoal of 6 glowlight tetras for my 35 litre (which has been empty for awhile) for under £5...

Edited to add: After a bit of googling it seems that kissing gouramis can grow from 8-12 inches and need at least a 3 foot tank... so I reckon thats another one to cross off your list!

Edited again coz I keep forgetting things: I don't know how you've been working out the literage of your tank, but as it's a corner tank the calculations are different than for a 'normal', rectangular tank. You may have already taken that into account (in which case ignore me!), but just incase you haven't, you may find this site helpful: http://www.adelaideaquariums.com.au/...s/calccnr.html

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