dmaccy dmaccy
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  • Posted on: 19/10/2020 17:12
Any ideas what this is? #1
Can anyone identify this on my plants please? It looks like a whispy dust, I know Halloween is coming up but its attached to all my plants and occasionally suspended in the tank.
dmaccy dmaccy
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Re: Any ideas what this is? #2
Attaching photo now

Attach file:



jpg  23256_5f8dbb28e3ebe.jpg (2,325.15 KB)
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fcmf fcmf
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  • Posted on: 19/10/2020 18:49
Re: Any ideas what this is? #3
It's some type of algae (possibly brown) - I get it too.
I'm not one to be advising on plant-keeping, and can't reply now, but I'll try to do so tomorrow about what I've done that has kept it at bay a little. In the interim, what (if any) fertilisers do you use and what is your lighting regime?
dmaccy dmaccy
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  • Posted on: 20/10/2020 17:28
Re: Any ideas what this is? #4
Lighting 9am - 7pm

No fertiliser used
fcmf fcmf
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Re: Any ideas what this is? #5
Will have to postpone replying comprehensively until tomorrow, unfortunately, but in interim think:
* lighting regime likely the main problem - reduce gradually to 6-8 hours to see if helps;
* fertilisers with macro (nitrogen, potassium, phosphorus) and micro nutrients ought to help and possibly addition of CO2, but best/easiest to try the former first.
fcmf fcmf
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  • Posted on: 21/10/2020 16:09
Re: Any ideas what this is? #6
Following on from yesterday:
* lighting regime - best to reduce by ~1 hr per week until down to 6-8 hrs, and see if that helps at all;
* fertilisers - macro (NKP) and micro nutrients worth trying initially, and, if that doesn't help, then CO2;
* fast-growing plants tend to help combat algae eg hygrophila, floating Indian fern.

In my own case, I had to change my lighting as the ballast 'blew' - new lighting (Aquael LED retro-fit light) has definitely helped. I had been dosing Seachem Flourish and root tabs but not macro fertilisers. However, having very low nitrates, and having high phosphates in tapwater, I started dosing nitrogen and potassium but not the phosphorous; the addition of these macro fertilisers seems to have helped considerably.

I oughtn't to advocate this, as it probably damages the plants, but I do find that either 'lifting' the algae off between two fingers, or even taking out the plants and giving a gentle dab/wipe with a towel or swipe with a fishkeeping toothbrush, helps.
scilover scilover
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Re: Any ideas what this is? #7
It means there is some infection present in the tank. Most probably fungus or maybe a bacterial attack. When these parasites start inhabiting the tank they form colonies of white cotton wool.