I think youre mixing it up with BBA here Michael?
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PaulLB
Member
Interestingly even areas of algae I didn’t directly treat with Gluteraldehyde are now turning red.
Will monitor and see how things develop.
You probably ended up using quite a lot of glutaraldehyde, meaning that the total level in the general water column ended up in the lethal to algae range.
I hope you will be careful in the future for the sake of your fish 😟 Their lives are more important than algae
hypnogogia
Member
Is this from one dose/application? How much did you use/add, and to what size tank?
PaulLB
Member
45L tank. Not sure how much I dosed as I just drained the tank 80% and painted the Gluteraldehyde onto the affected plants with a toothbrush. Quite a high dose is my guess based on my two dead fish and all the algae turning red.
blairgerman
Member
Glutaraldehyde effects can be insidious, hard to tell till it's too late. Wish i had never used it. if anything, hydrogen peroxide for spot treatments. I'm a novice though. staghorn went away when i got things balanced by listening closely to experts here.
MichaelJ
Member
Probably,.I’m actually not the best person to give advice on algae because over the last couple of years I haven’t had any
Cheers,
Michael
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Andy Pierce
Member
You can stay out of trouble with glutaraldyde by first measuring out the maximum amount you would want to add to the water column and using that to paint with. When that's all used up, you stop painting and put the water back. E.g. 45L of water (actually measure how much water you have - hardscape takes up volume) if you did double-strength glutaraldehyde for the whole 45L you would use a maximum of 0.9 ml: regular dose 1 ml / 100L applied double strength to 2 ml / 100L.
