Black edges on Nana

[|squee|]

I just realised today that my nanas' leaves have black edges. Is this a sign of BBA?

[Giant]

Mine also has those black adges.

But there are also dark green spots on them.
Maybe the 'black' edges are really really dark green edges?
Think I had them there for some time but, no sign of BBA.

Fingers crossed

[mozesyap]

For me when my nana got black edges, BBA soon infested my tank.

I got a feeling it is the first sign of BBA. But I am no expert, I may be wrong.

[chua]

I also have them.

For me, i just cut off those leaves with this problem.

I personally feel that plants like nana tend to have such problem due to its slow growth.

As long as your other plants are not affected, it should be fine.

[|squee|]

It's confirmed: BBA. I'm starting to see it colonizing my driftwood. Dang it. My reactor must be clogged.

CO2 time.

[benny]

My nana are prone to spot algae and BBA. Usually starts from black edges before the hairy bits starts grow out.

I give up. They win. I now have a 2ft planted BBA tank.

Cheers,

[PeterGwee]

My nana are prone to spot algae and BBA. Usually starts from black edges before the hairy bits starts grow out.

I give up. They win. I now have a 2ft planted BBA tank.

Cheers,

Time to look at the CO2 and PO4 dosing.

Regards
Peter Gwee

[Sleepy_lancs]

Time to look at the CO2 and PO4 dosing.

Regards
Peter Gwee

Did all possible.. even to the extend of having 6.2 PH at 4 KH. P04 is at 2ppm per dose x 3 times weekly. The BBA is here to stay. Any other ideas?

[juggler]

My nana are prone to spot algae and BBA. Usually starts from black edges before the hairy bits starts grow out.

I give up. They win. I now have a 2ft planted BBA tank.

Cheers,

From my experience...
If they are planted under shade (no direct light on them), they are less likely to get spot algae or most other algae. The spot algae or BBA seem to start on those leaves exposed to direct light. See my tank with the Anubias under shade.

I wonder how Amano have his Anubias exposed under bright lights and still does not get algae.

[PeterGwee]

Did all possible.. even to the extend of having 6.2 PH at 4 KH. P04 is at 2ppm per dose x 3 times weekly. The BBA is here to stay. Any other ideas?

Is it actively growing? If it is not growing, you will need to remove it manually then. Whenever you make changes to the CO2, give the plants some time to respond. It shouldn't be growing if the CO2 is good.

Regards
Peter Gwee

[Sleepy_lancs]

Is it actively growing? If it is not growing, you will need to remove it manually then. Whenever you make changes to the CO2, give the plants some time to respond. It shouldn't be growing if the CO2 is good.

Regards
Peter Gwee

PeterGwee,

I am not sure. I can't be sure its growing or not. hehehe. I will continue to monitor it for the next mth or so.

Juggler,
My tank seems to be the same as yours. Exposed lighted area (either substrate or nana) seems to have BBA otherwise other area in the same tanks are doing fine.

[juggler]

Did all possible.. even to the extend of having 6.2 PH at 4 KH. P04 is at 2ppm per dose x 3 times weekly. The BBA is here to stay. Any other ideas?

For my tanks, I never dose NO3 since I feed my fish a lot. I found that if I start dosing NO3 (even at 5ppm), BBA starts to grow. PO4 I dose at 1.5ppm weekly. K is 10ppm weekly. With this, BBA is under control -- not spreading.

[ah^siao]

cut the leave away and wait for the new ones to grow out.

maybe amano changes water everyday?

[Sleepy_lancs]

For my tanks, I never dose NO3 since I feed my fish a lot. I found that if I start dosing NO3 (even at 5ppm), BBA starts to grow. PO4 I dose at 1.5ppm weekly. K is 10ppm weekly. With this, BBA is under control -- not spreading.

For record purpose, I dose:
5.1ppm of NO3 3x a week
2ppm of PO4 3x a week.
0.265ppm of Fe 3x a week
1/2 tsp of Seachem EQ

[Sleepy_lancs]

Dear All,

My observation over 2 weeks,
BBA significantly reduce. No new outbreaks but those remain are here to stay. It is also preferred to use Baking soda to stablised the KH level since the use of coral chips (previously) seems to create fluctuation of CO2 level even though the injection rate stayed constant.

Green spotted algae seems to be still a problem. I will continue to monitor since I have got my FL tubes just changed.