Zeovit isn't a cure for cyano - but if things worked they way they say they work - cyano would be outcompeted for nutrients. This is theoretically acheivable, because I know my cube tank used to be a nightmare of elevated NO3 and frequently did suffer cyano. IME, cyano is almost always triggered by elevated levels of NO3. I went to Polyplabs on that tank just for the heck of it, and it sucked the nitrates out. After a month or so down that road the cyano literally disappeared on its own.
I would agree that in this tank though, that the fuel/food added for the zeovit bacteria is instead being consumed by cyano and the cyano is outcompeting the zeo. You are correct, it is a survivor. Give it a foothold and it will make a stronghold.
Anyhow in answer to your question - probably. I do weekly changes as part of the zeo subscriptions but the red slime remover treatments usually call for larger wholesale changes. I'll likely do my weekly 10% before treatment and then do the usual post-RSM-treatment 30%.
__________________
-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
|