Aquarium plants turning black

rr20981n · Mar 6, 2021

Hello,
My aquarium plants are turning black not sure whats going on. It’s been a while since I’ve been trying to fix it. I have a canister filter. I have low Ph around 6, but ammonia, nitrite and nitrite seem to be fine. Any help is appreciated

Colin_T · Mar 6, 2021

Anubias plants that are marsh/ garden plants and they are getting covered in black beard algae.

The algae is introduced into aquariums on leaves of plants or as spores in water from pet shops or tanks that have black beard algae. It's a pain in the butt to get rid of and most people scrap the tank and start again. Other people might have different views and opinions.

Callisto405 · Mar 6, 2021

Get a couple Siamese Algae Eaters. They are some of the only fish in the hobby that actually eat Black Brush Algae. They can clean an entire aquarium of the stuff. I've seen it! But here's the catch, they are easily spoiled on regular fish food and can grow to 6 inches. But if handled properly they are great algae eaters. Cool fish, I own 12

seangee · Mar 6, 2021

Anubias grow slowly and the BBA is most likely due to too much light (too long or two bright). If you get it in balance it will simply stop growing. You can scrub it off, or cut away the affected leaves but you really do need to fix the cause.

rr20981n · Mar 6, 2021

I just read online that Seachem Flourish Excel would help, is this true?

Dajuyu · Mar 6, 2021

rr20981n said:
I just read online that Seachem Flourish Excel would help, is this true?

Bests to treat it on a hospital tank .... or some sort if you wanna use the treatment chems and such

seangee · Mar 7, 2021

rr20981n said:
I just read online that Seachem Flourish Excel would help, is this true?

Its poisonous to fish (even if seachem claim its not) so I would not use it. Gluteraldehyde is a powerful disinfectant used in hospitals for sterilising surgical equipment and as an embalming fluid - I won't have it going into my ~~tank~~ fish. You can use dilute H2O2 to kill it (but do this outside the tank and rinse well. Honestly there is no need. Remove the conditions that caused it and it will wipe off (you may have to cut away leaves that are damaged.

I actually have BBA on the wood in one of my tanks by choice because of the look I wanted to create. It does not spread and I never have to clean it off. There is also none on the plants.

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