Frequent Asked Questions | D-D The Aquarium Solution

hi . i accidentally dropped my aquailumination prime in my aquarium. and its 
not workin well. what can i do?
can you help??
im from jersey channel islands uk

Hi I use 2 D D FMR fluidised reactors and have done
for a while . unfortunately I need replacement push on elbows  for both  .
The part number may be FMR BND. I am having a lot of trouble getting these
parts and have been trying for 8 weeks now. Can you help?


I have been using biopalletts seen november but didint seems is working 3 weeks ago i found 25 nitrates i down this to 0 today i found 10 nitrate. I have a 225 lts tank with 250ml of biopallets. My friend told me thay i dont have good flow to work attched i have 2000 lts pump with it when i connect the biopallets reactor only it thunble very fast and when i connect with rowaphos reacotor it comes slow and only thumbling  part of the reactor. Shoulf i make a saperate pump for the rowaphos?

I expaine my sump on the 1st chamber where the water comes down the is the protein skimmer pump and then goes to 2nd chamber where i have live rock 3 chamber i have the return pump and the biopallets pump where this take water back at the 1st chamber where is the protein skimmer is that wrong? Should i move the pallets pump?

also can you please recopmand a pump and flow for rowa phos reactor?


Hi, posted this in your forum yesterday, had hoped someone would have answered me.

Had the SC2060 protein skimmer running for a while and its great, but always been noisy and rattling. I've spent a day isolating everything vibrating in my tank and got rid of the rattle, but I cannot reduce the hum from the protein skimmer. Everything has been fixed tight, and it is sat on a foam mat, even if i lift the protein skimmer so it is 'floating' the hum is still there so it must be the pump. Otherwise I cant fault the protein skimmer, just need to silence it. Can you please offer advice?

Also, the Ti grounding probe, does this need to be plugged into the wall on its own socket, or can it go through an extension multi-plug?


mandar1n3 aka Billy


I have an aquarium that is 600 litres, medium stock level, running with an mce600 turbo placed inside the sump, I have looked into the sc1455 protein skimmer with a view to update my MCE600 turbo, noting that the operating pump is the same, would I get any benefit from this plan or would you suggest another course of action? Also my sump level is exactly on the 240 mm depth.

Many thanks for any guidance you can offer.

Hello,im looking to purchase a 72 x 30 x 30 reef aquarium in 
the near future that i want to light with Hydra 52's. My question is,would 3 
be enough or would 4 be better? Also i want to mount them using the tank 
mount ext rails and want to know at what height above the water they would 
need to be. The tank will be a mixed soft and hard coral reef. Thanks very 


I have one of your 50 GPD RO units + booster pump and have a few queries.

First of all, where should the booster pump be connected? My local fish store told me it needed to go after the pre-filters & before the membrane yet I see in your FAQ online you advised someone to place it before the pre-filters. My local fish store told me doing this would wear the pre-filters out really quickly?

Also, if I wanted to connect the unit to a washing machine connector would it be OK to be regularly switching between the RO cable and the washing machine cable? Or will water pour out of the washing machine when I disconnect the pipe?

Finally, does the pump need to be run for a time before it becomes efficient? I tried using it briefly after the pre-filters and my TDS was still coming out around 13/14 like it was without the booster.



Hi, I have just installed a H2Ocean fluidised media reactor in my reef 
aquarium - FMR75 with pump. Never having used a reactor before, what should I 
expect to see in the plastic tube when the unit is running ( currently a 
little disturbance at bottom of tube - not sure if media should be dispersed 
in whole length of tube). I'm using it with Rowaphos to reduce phosphate 
The manual says to run it with a smaller pump and not to 'over fluidise' the 
Rowaphos - How do I know if I'm over fluidising, I'm using approx 100g of 
media for my 300 l tank.  Any help would be apprecia

What combination of tubes do you recommend in the Red Sea max 
250 aqurium

My D-C 750 cooler will not start. The panel works, but the compresser and fan 
will not work. Is there a thermo protector in the unit that might be damaged? 
Can it be repaired? As far as I can see, there is no power on the brown and 
blue wires in to the compressor.
Looking forward to Your replay,

Can I use it in a Marineland biofilter.


I have one of your 50 GPD RO units and after flushing for 1 hour and running in normal production mode for 5 - 6 hours my output TDS is reading at 14 (with my meter and verified by my local fish store). My tap water TDS reading comes in between 180 - 190.

Does the unit need running longer to achieve a lower TDS? Or is my reading normal without the use of the DI pod?




I'm hoping you can help. I need to look at the needle wheel and fittings of 
my deltec protein skimmer as it has stopped working. However, I don't seem to be able 
to get into the protein skimmer to do this. Both my own internet searching and my 
local fish suplier have led to your website to download the PDF docs you 
have, but these are what came with the protein skimmer and am no wiser as these don't 
actually give guidance on maintenance!

Therefore, I am getting in touch hoping you may know what I can't seem to 
discover, is just how to get into the protein skimmer to look at and probably replace 
the needle wheel?

I look forward to any advice you can give.

Many thanks


I'm looking to swap my food as I'm not really too happy with my current flake 
as the fish would much rather take the mysis and nori sheet. I see you have 
large range of food and I am baffled as to what I would need as a replacement 
to my Ocean Nutrition flakes.
I don't really understand all of the claims on the side of the packaging as I 
believed this on the Ocean Nutrition flakes and it made no difference to the 
fish as far as my eyes could tell.

Tank: 7x2x2 mixed reef
Fish:  Clown Fish
         Blonde Naso tang
         Flame Angel
         Lyretail Anthia
         Red Velvet Fairy Wrasse

Any help is greatly appreciated.

Best regards


Have purchased your RowaCarbon for my marine tank. Its just finished its 
cycle, am I okay to use this now, even though I do not have livestock in yet?

Also my tank is 114 litres wet, can I just fill the supplied bag and put it 
in my system, after the skimmer outflow?

Finally, how long will the carbon last for in my tank? Will I need to change 
every month, or can I just flush with RO?