Reefkeeping South Africa » Marine Aquariums of South Africa

Marine Aquariums of South Africa

Bristleworm eating red bubble algae

Posted: May 31st, 2011, 10:31pm CDT by B2048

Tonight I observed something I have never seen before. A bristleworm seemed to be eating a piece of red bubble algae. It ingested it and you could even see the bulge of the bubble as it moved down the length of its body. It then proceeded onto another piece of red bubble algae completely covering it with it's mouth parts, tearing it off and swallowing it.

Has anyone else seen a bristleworm do this? I didn't know that bubble algae was part of their diet!
red algae?

Posted: May 31st, 2011, 9:51pm CDT by malooda

hi

iv got these red marks on some of my live rock. what is it? what do i do with it? my tank is currently cycling.

the red dots on the middle rock
Regal Tang- White spots

Posted: May 31st, 2011, 7:12pm CDT by zak

Hi guys,

My latest addition to the tank seems to be infected with white spot. He scratches himself against the LR. What do i do? He's eating fine, feeding him flakes and tried nori this afternoon, he had a little..
Is my Bubble Tip spawning

Posted: May 31st, 2011, 5:28pm CDT by Helga

Hi There,

I am totally panicked. I have had my Bubble Tip in the tank for 7 months now and it has been growing and growing. Its up to a dinnerplate size now. I have two Maroon clowns living in it that are extremely happy. They spawn every month. The Bubble tip has stayed put since day one so I have been very chuffed.

I feed the BT lance fish every 3rd day. It eagerly takes the fish from the feeding tong.

I have now noticed the BT has deflated somewhat and it is oozing a cloudy white substance from its mouth. The mouth is somewhat extended.

What to do. Have read on internet that it is spawning. Is this harmfull to my reef. Should I remove the Nennie. Is this normal behaviour.

Please help me

Helga
Shop Pico tank

Posted: May 31st, 2011, 4:41pm CDT by Two Oceans Aquatic S&S

I feel like showing off this great little tank that I have built over the last 6 weeks and has turned into a real little show piece. It is a Jebo 338 and I would say it holds about 30Ltrs it has 10K T5 lights and a neat filtration system upstairs with ceramic rings nogal. I am super chuffed with the way this tank runs. I am dosing Fuana Marine Ultra bac and Ultra boi to keep the nutrients in check but I have to say this whole system is a very delicate balance. The corals are mostly pieces that have broke off when shipments arrive. I had to add the balasto's and the favia to finish it off :P. Fish wise I have a pair of clowns a small gold head sleeper gobie and a tiny little bi color blennie.

Here are some pics

Trev
Milk filter sock

Posted: May 31st, 2011, 3:14pm CDT by nico.m.ferreira

Hi all. I am sure we had this discussion before.
I am looking for milk filter socks, were can I find these?
I am in the Centurion region.
If I am not able to find it what else can I use to keep the filter floss in place at the 2x 40mm pipes from the tank to the sump?
Glass bio balls? Yay or nay

Posted: May 31st, 2011, 2:36pm CDT by flamming angel

Howzit ppl

What do you guess think about these bio balls :
Dymax Bio Glass - Filter medias .

thanks
water change during cycle?

Posted: May 31st, 2011, 2:32pm CDT by malooda

Hi

Do you do water changers when the tank is cycling? Or do you just do normal ro top ups?

O and when you dosing purple up do of the skimmer?

Thanks
new here

Posted: May 31st, 2011, 12:51pm CDT by jonno

hey guys

im new to MASA, been keeping marines for a while now but relatively new to coral.

im busy setting up a 1.5m reef tank with sump(dsb and ref) total literage should be around 700 to 800L, im looking at keeping mainly softies and lps maybe 1 or 2 more hardy sps at a later stage

let me take this opportunity to say i am still looking for a lighting unit and a skimmer for this setup was thinking 6 to 8 54w tube unit with moonlights and skimmer along the lines of a super reef octo 3000 in sump if anyone has something along these lines lying around that they want to part with please let me know.

would luv to hear any suggestions or advise you guys have to offer:1:
help needed

Posted: May 31st, 2011, 12:11pm CDT by Reidwans123

Hi All

Been around for a while and just had a horrible mishap got called at work being told tank is leaking ,got home and my 1 meter cubed tank cracked on the left side from top to bottom,Dont know how this happened maybe some one can explain how this happens,have buckets with liverock all over lounge,can some one advise where I can have the tank repaired 10 mil glass base has two layers 10 mill glass and the top layer is cracked by my drain holes,can i put another 10 mill glass on top of the inner glas or must i replace both??
Power usuage ...

Posted: May 31st, 2011, 11:12am CDT by ZeroCool

Hi guys.

I have the following light on my system ...

250W MH (Reflector, Ballast and 20000K BLV Globe).

Question, i dont mind paying for the power it use, but will switching to T5's consume less power ?
Purigen Turning Red

Posted: May 31st, 2011, 9:50am CDT by Qaiser

i have added purigen over the weekend and have noticed the skimmer going crazy not sure why. After the 2nd day slight red patches appear on the bag, any ideas as to why this is happening
bio balls

Posted: May 31st, 2011, 9:32am CDT by mupwi

Hi I am looking for bio balls I see everyone seems to be diching them I have about 5 at the moment that tumble around on the surface of my sump and whant to get a bit more surface area in there. On the bluff in durban btw
The best skimmer ?

Posted: May 31st, 2011, 8:57am CDT by Yuri

What will be the best skimmer to get for a
3000L tank that is over stocked
And I was thinking of adding some sps later

The skimmers I was looking at is the 3070 or a 3070s
What do you recommend the most, internal or external
What is your head height.

Posted: May 31st, 2011, 8:30am CDT by RiaanP

Depth of water between last divider top, and actual water level.
Let us discuss this as a single topic. Discussion is buried inside this thread,
Sentari's New Tank - Page 34 - Marine Aquariums of South Africa
but this is something that always bothered me.

What is yours?

Reason
We do not want the water to flow too strong over the DSB. Will blow the sand away and will not allow the things we want to settle out of the water, time to do so. So its not penetrating the sand area.
And we do not want it too slow either, resulting in too much settlement on top of the sand, in regards of detritus. The nitrates and phosphates in the water will penetrate the sand, but eventually the detritus settlement will "suffocate" it. Block the top layer up. That is why we need to disturb the top layer a little bit, either ourself, or using Nassarius or Whelk snails.

The rule that was advocated 2 to 3 years ago here on MASA was between 3 to 5 times your display tank volume must go via your sump an hour.

OK, take 2 tanks, both 500L. Both sumps also keep same water volume. Take this turnover rule, so that gives us a return pump of between 1500 and 2500 L/h. I ignore head height for now. Just take it that both tanks got same head height.
Now the important part. Tank A sump is 300mm wide by by 600mm long. Tank B is 600mm wide and 300 long. (wide, as in divider length). Both DSB got the exact same footprint. What is the flow rate? Tank A water will flow at double the speed across the DSB compared to tank B. Tank A head height, the distance between glass divider top edge and the actual water surface, will be double that of tank B.

What is the result. Tank B DSB will have settlement on the sand. Needs to be siphoned out. I believe tank A will have a better DSB, even if the footprint of both DSB are the same.

So its more about the flow rate. And not the water turnover rate as compared to the display. For Tank B, to prevent settlement, you need to have the same head height of water over the divider as tank A.

Been here, done that, learned my lesson. For my big tank of 750L, the turnover rule meant that I have to use a pump of between 2250 and 3750 L/h. Divider is 600 wide. I used a 3000L/h pump. And I had settlement I needed to remove manually. It just did not work. Until I added another 3000L/h pump and viola. Settlement crap sorted.

Do I have a valid argument? That the old turnover rule be re-looked at. And rather a rule for a head height of between 5 to 10mm be more valid? The actual distance, I'm not sure yet, but based on my tank, and the tanks at Dorry Pets, it will be somewhere in that range.