ok, so i will probably go with the community tank. one last thing, and this is probably the biggest question. so i had a tank before with 5 glofish tetras. before i got them, i had cycled them, or at least i was under the assumption i had. the nitrate levels went up and the nitrite and ammonia levels hit 0 and stayed there or close to it. but the tetras all died after a week. some suggested that maybe it was because i hadnt changed my filter cartridge or bag for about a month and a half and hadnt cleaned the filter enough. i thought there was enough beneficial bacteria in my tank. i was going to get a new filter bag and cartridge for the 20g tank and get a stronger filter too. should i restart the cycle in my new tank or can i transfer the decor, and be fine? if i have to redo the cycle, i should go with fishless right?