Last time I tried this... i added a Chicago to eatblished 5-6 csb tank... they all deflated with the hour.. I removed the Chicago n they were all back to normal the next day. I have a 500 gal system.
My friend on the hand added a csb to his established Chicago.. they shrunk slightly... n he kept monitoring it... after a week or so.. they were fine.. it's been months now. The csb actually split last month.
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