inside DSB got black black stuff

[[JS]]

izzit normal ?

[FuEl]

Use a needle syringe, do down into it and draw up a sample. Smell if got rotten egg smell, if so might be hydrogen sulphide building up..

[[JS]]

if is how?

[FuEl]

Probably time to get more critters for your sand bed. Those type which don't burrow too deep. Hopefully their movements help to release the gas slowly rather than allow a buildup. Not sure what animals would be appropriate as I'm not using DSB in my main tank..

[bubble_gum]

bro suggest u go buy those sand shifting starfish.....

[[JS]]

i just try and draw some sand out in the black spot

not smell leh ....

[[JS]]

i though dsb should not distub 1?

[[JS]]

help pls....

[FuEl]

No disturbance as in disturbance on a human or fish scale. If it's in the microfauna scale it would be beneficial. Denitrifying bacteria work in an anaerobic zone. It's not completely anoxic. Some oxygen still needs to be present for burrowing microfauna to survive. Actually between grade 1 and grade 0 sand I would prefer grade 1. Grade 0 seems too compact for stuff to burrow in.

[typrobin]

just leave it as it is....buy some decorative stickers to cover loh....

[hammy]

i have that in my DSB too ... er i think it is hydrogen sulphide and from previous thread i think if it is not disturb on large scale , it will be fine ....

get starfish loh ... dun try to do something funny because i think it is toxic ....just leave it as it is will be fine ...

my 2 cent

[victorp]

It's too close to the surface to be anoxic; I think it is some form of algae growth on the glass and sand next to it. How old is your tank?

[sunnymau]

i think it is part of the process of NNR.

is there air bubbles between the sandbed?

i use sand shifting star to help me to do the job, but don seems very helpful

[junyong84]

eh, doesnt look very pleasing...

[[JS]]

my tank is around 5 mth old

got bubbles in my sand .....

any advice pls

i dun 1 to restart my tank again .........thx

[giantbicycle]

Juts to share , mine also like that ..after 6months ..Now have a cucumber but does nothing.. whats that ??

[sunnymau]

i think the bubble is the end product of NNR. nitrogen which mean ur sand bed is geting mature and it is working hard to bring down ur nitrate.

so dun worry be happy. the bubble will slowly move up and eventually gone. as long as there is nitrate in ur tank this process will carry on. i think the black patch will go and come. it is a good sign i think

[ReDDeviLs]

mine is like that too..but after the black stuffs gone,there will be some light stains bits and bits there..very difficult to scrab it away..

i thinky my goby and pistolshrimps are disturbing it by digging quite deep under.. hope they wouldnt change house..

i have learn that dsb is better to have it behind the tank and infront a thinner seabed.

[giantbicycle]

so is it required to stir it up ??

[sunnymau]

jsut leave it there. don ever stir it or u will realease sulphide too fast into the tank. correct me if i m wrong. but no harm to stir the surface of the sand bed a little, go get sss of black cuke to do the job

[giantbicycle]

haiz.........i everyday stir up the surface a bit to clear the algale...MY sea cuke is doing rock climbing...!!!!!!

[alanseah]

well if u see crystal hard stuff forming in your sandbed... then can start working...

else I think it's still best to intro some worm into the sandbed.. they help alot...

[Eric]

well if u see crystal hard stuff forming in your sandbed... then can start working...

else I think it's still best to intro some worm into the sandbed.. they help alot...

Lai leh lai leh......let's organise a worm digging section during the low tides morning on one of the weekends.......I know a good spot in punggol where there're worms,crabs,snails,live rocks.............hehehe

Eric

[ReDDeviLs]

count me in!!!

[[JS]]

lets go and find worm......

when where time !!!!