Will Flourish Excel kill fish?

44226 Views 13 Replies 11 Participants Last post by Michael, Jun 6, 2021

inwu

Discussion Starter · Oct 9, 2009

I have terrible hair algae boom so I decide to over dosing Flourish Excel to kill them. Actually, this is my first time using the Flourish Excel. I got it last night and put 25mlx3 in my 55gal tank. This morning, the hair algae does look thinner and this is a good thing. But I notice the platy and cat fish looks weird after I add the Flourish Excel. They just don't move that much. I even suspect they are dead. Should I do water change ASAP or just let them sit in until the hair algae get controlled?

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intothenew

· #9 · Oct 12, 2009

I have, in the heat of battle, dosed as much as 1ml per gallon. In a 55g with substrate and hard scape that's about 45-50 ml max. I ramp up the dose over a weeks time, that gives the enemy time to realize that I'm serious, and hopefully avoids any friendly fire incidents.

I have yet to experience an enemy that could withstand a week of that full artillery barrage. As has been said, aim your weapon directly at the enemy.

At that rate, I do notice a dip in moral of my troops.

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