New symptom

[kotlec]

Growth on screen is reducing every week and algae reverts to yellowish slime. This started after I increased lights (added one more bulb to previous 2 - so by 50%). I tried reducing time and took out aditional bulb. Nothing seems to help at all.

DT is clean and no sign of algae there. Corals seems to be happy too at the moment. I have only two small fish and feeding acordingly. I thing food amount that I feed is enough since corals grow like crazy. Actualy I'd like to slow them down as I will need to double tank size soon if this will continue at present amounts. :evil:

[SantaMonica]

Yellow always mean too much light for how much flow you have. Try reducing 3 more hours of light. Add iron too.

[kotlec]

Thanks.

Does it means something other being more " slimish " instead of turf ?

[SantaMonica]

Yes it means too much light for how much flow/iron you have.

[kotlec]

New symptom again. Transparent fluff !!!
Dont know is it new or was it for long time, but noticed today. Always wanted to know why coralline is not growing on live rocks in my tank anymore. It started to grow rapidly when tank was just setup. Something happened and it stopped growing . Even worse - coralline started to disappear from rocks ! It's very well noticeable on back wall as it is black. Back wall was almost completely covered in light pink coraline - now mostly bold interchanged with same greenish -transparent fluff. Today I made small sand storm in tank to get rid of detritius from rocks. Water cleared up very fast after installing sponge in sump area. But small amount stuck to that fluff and made it very well visible. Seems like that same fluff is growing on all glass surfaces together with film algae, but not full scale, just like islands. Razor is the only way to clean it .
I thing it is covering all rocks and overcome coraline ?
Do I simply need bigger cleanup crew for my 16G ? What animals would eat that stuff ?
Any input apreciated.

Off topic question. Is this iron ok ? http://www.zoocentras.lt/easy-life-ferro-gelezies-trasos-akvariumo-augalams-250-ml-p-671.html

[kotlec]

Island of white fluff on side wall.

http://farm7.static.flickr.com/6233/6253536260_6a258913a9_z.jpg

Back wall corner covered in same fluff after sand storm. This wall never gets cleaned. Same transparent stuff, just smaller, covers all rocks as well.

http://farm7.static.flickr.com/6116/6253536430_4dca2459c5_z.jpg


Coraline leftovers. Pink and some purple. Remember months ago it was completely covered with coraline.

http://farm7.static.flickr.com/6221/6253536612_72299e4b3b_z.jpg

[kerry]

That brown stuff is the same thing I get. I get a lot less when I razor blade the glass (makes it smooth). It seems to adhere to the contaminants that build up on the glass. I get this build up as soon as clean my screen. This is also the color of my screen growth for the most part as well.

[SantaMonica]

Transparent fluff !!!

Diatoms, dino's


why coralline is not growing on live rocks in my tank anymore

Phosphate


Is this iron ok ?

It's probably fine, but not needed unless you are growing a lot of bright-yellow algae.

Simple enough... your nutrients have increased. First thing to grow is dino's/diatoms.

[kotlec]

Thanks Santa,

My screen is 3x4. Light one side 8w 660nM LED. I feed 1/10 part of cube or less aproximatelly. Can you comment on these figures ?

[kerry]

I feed up to 1 to 1.5 cube(s) to my nano 10G it has a 2.75"x6.75" screen.

[MorganAtlanta]

If you can't grow coraline, check your Magnesium levels.

[SantaMonica]

Pics of growth

[kotlec]

at 6 or 7 day

http://farm7.static.flickr.com/6155/6259644701_1354ab9d87_z.jpg
http://farm7.static.flickr.com/6176/6259644611_fb54ef182d_z.jpg

[SantaMonica]

First pics looks like not enough light. Second looks like too much.

If there is any yellow, it's too much light.

[kotlec]

First pic for amount and second for color.
So yes - color yellow. Second pic describes it rather precise.

What is minimum hours for ATS per day, before I start reducing wats ? Or let I ask differently. Is there ideal light period for algae ? I am afraid algae will not have enough time to grow if I reduce hours too much ?

[SantaMonica]

That is not yellow.

I'd say not enough light then.