Reef and Marine Fish Forum

Hello,

I'm at a loss. I'm still relatively new to this and so not really sure what is going on! My tank is about 9 months old, generally been good although did go through a period a while back where my corals started to look really bad. Am through that now and thought i was doing well but in the last few weeks i've lost 4 fish. I've checked all the things i think i should be checking and aside from Nitrate being 12ppm ( which i didn't think was too bad ) i can't spot what could be wrong....

Guess I better make a thread for my new tank, another Reefspace 900, but this time in white.

Picked the tank up back in December after having a chat with the wife about changing the colour of the living room furniture from black to white. It came with a blue backing, which I hate, so that was whipped off

2017-12-30_05-27-58 by Phil Cookson, on Flickr

Had loads of dry rock pre-purchased, so left that soaking in RO for a few months with regular changes

2018-01-08_03-58-46 by Phil Cookson,...

My new AI Prime HD has a lunar function that can imitate the phases of the moon to reduce/increase the blue light if left on at night (currently set at 5% it will become 2.5 at half moon and 1.25 at quarter moon, etc..).

I ask the question as am not sure if leaving some light on all night is beneficial to the occupants, or not? So what's the verdict and what do you do?

And a sneaky look at what you are all up too lol

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Hi all my new tank arrives tomorrow and im all excited iv been outof marines for a few years now so just need a few suggestions in my sump shoud i use bioballs or live rock rubble??

What are the best test kits for phosphate and nitrate on the market?? New to the hobby so want to invest in the best thanks in advance.

Hello.

Easy question for some I’d imagine but I’m new to this. I’m guessing the black bits of this coral aren’t good! A sign I have it too high up and close to thing? Not getting enough of what it needs?

Help please. And thank you!
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can anyone recommend a new light for me able to copy with all corals?
I could do with one with a time that starts and ends doing the full lighting cycle and then off for the night.

Hi all! Well I’ve bit the bullet and returned to marine fish again. I did have a small tank before which just ended in disaster so decided to sell up, this time round I am not being beaten and have bought everything I believe to make a good setup! I got everything delivered last Friday 13/10/17, Here is the equipment, let me know what you think:
Most important thing TCM V2 100gallom RO unit
Ea Reef pro 900S tank and cabinet
TCM V2 Iluminaire 900 connect
Red Sea reef base reef pink 20kg sand...

Ok. Following on from my previous post some developments.
Lots of red slime on my sand, which from reading is the bi-product of the bacterial action of cyano bacteria.
I'm scooping it out with a net, rinsing the sand thoroughly until its all washed away before returning it.
Phosphates have now dropped right back again, and curiously the skimmate has lightened considerably from it's previously near black colour to light brown, which would suggest less organics? So, if the cyano bacteria...