This might sound very stupid but i need to know what does the cycling period means? My sister is the one who first bought a tank a small one(5 gallons) and had 2 i.d sharks, and a couple of small cleaning fishes(forgot what they are called)she had this for 3 weeks and when i fell in love with this i got a bigger tank(10 gallons) i had this for about two weeks and change the water twice already and added 2 pleco, 1 zebra pleco, 4 neon tetras, 1 small angel fish, 1 beta shark which died this morning
.My question is how often should i clean and change the water, and how to test for ammonia and to now a safe water cond.? BTW am i ovealoading my tank? cause i'm planning to get a couple of small cloan loaches maybe next week? thanks guys 
