hi im new to keeping fish and i was wondering if my tank is over stocked i have a juwel rio 240 litre tank that has been set up for about 8 or 9 weeks now and in it i have 9 zebra danios, 3 mollies, 3 balloon mollies, 4 guppies, 2 dwarf gouramis, 2 young clown loaches, and 1 clown pleco. any help will be great! cheers.