Hiya all... Everyone's been so great with advice that I thought I'd see if I could get a bit more out of you...

I've decided to bring home some baby Red Devils... Currently they're able to live together, and then I'm getting a new and huger aquarium in a few weeks that will give them lots and lots of space... I understand *some* when raised from a young age together with tons of room can live together, so here's hoping, and if not then we'll just have lots of aquariums... We'll have the room now with out new place!!!

BUT.. I haven't had fish in a long time, so some recommendations would be great!!!

What do I need for essentials (Other than heater, food, and water treatments to keep clean and healthy)... What type of water filter would be best? What sorts of chemicals and testing kits do I need? And what is the easiest way to maintain ph levels etc???

Recommended hiding places would also be much appreciated as it seems they love to rip apart plants and decorations... Big heavy stuff??

I was thinking of using river rocks as 'gravel' because they're heavier and harder to spit at the glass, but could still be moved around....

Any other suggestions?? I have um... 6 days to plan, one day to buy and set up, and then the trip home

I have the tank, and have been advised it's adequate for the time being... Have a bunch of people in different cities watching out for large tanks in the paper (there are always people getting rid of them here) for me... Have my eye on a big 4'x 20" tank if my Dad will go and pick it up for me, but I just want to make sure my shopping list is complete!!!

Probable dumb question, if the heater I'm buying has an "easy to use" thermostat, do I need to put in a special thermometer or anything???