I don't care about co2 is better and related banter, what i am after here is a compendium of how members use metricide for substitution or along side CO2. There are plenty of members here who use it and even more who ask about it.
The reason is i added a liquid substitution section to the co2 thread a while back, but i know very little people use the recommended dosage from flourish. I know results will vary based on tank size, lighting, plant load, fish load, and fert levels. Fyi, excels dose works out to 0.06 mL / gallon / day of metricide.
You can also say your experience playing with the amount, but please stay out of the thread if you are just here to preach go pressurized, as i am not here to preach against pressurized. There is always risk going above the recommended dose on everything, but it would be nice to actually figure out what is the actual threshold is. Plus, gathering peoples experiences will help others figure out where they feel comfortable starting, rather than shooting in the dark.
Format: x mL / gallon / x days : what you keep successfully, what died.
0.25 mL / gallon / day: Amano/cherry Shrimp, community tank fish; No livestock deaths or Plant melts
0.34 mL / gallon / day: Unable to introduce invertebrates despite several attempts, Current livestock showed no signs of stress; No plant melts. Changing regime back to 0.25 in prep for shrimp introduction. -added June 12th, 2011
0.4 mL / gallon / day: a couple shrimp deaths, plants were fine, dropped back down to 0.25 soon after.
1.0 mL / gallon / day: Shrimp deaths. Used to kill a BBA outbreak over the course of 2 weeks.
all my tanks are at recommended EI regimes, Medium light/low light thresh hold, no co2. some tanks are now on co2