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-   -   need some advice please, Thanks (http://www.tropicalfishkeeping.com/beginner-saltwater-aquariums/need-some-advice-please-thanks-38244/)

marine666 02-28-2010 12:23 AM

need some advice please, Thanks
 
Hi, my tank has now been set up for 28 day's waters stat's are:
PH 8.4
ammonia 0
nitite 0
nitrate 0
kh 9
ca+2 440

I've got some question's i still have some algea from the diatom bloom on my sand and some patches of green algea starting to grow looks like little fern's it's not slimey do you think this is a flow problem also in the last 4 day's my kh and calcium have been dropping so i am having to buffer them every day does this sound normal.coraline algea is starting to grow on the rocks.:???: help:lol: Thanks

n1zjd 02-28-2010 06:34 AM

Yup everything sounds perfectly normal to me :-) Have you added any CUC yet? They will help with the algae your talking about. I dont think its a water flow problem. The coraline algae is using the calcium which is dropping your Calcium levels and lowering your Alkalinity, just like you want it to. If you havent done a large water change since the diatom bloom now would be a good time, as well as adding a portion of your CUC.

Pasfur 02-28-2010 09:16 AM

I agree 100%. Doing a water change at this point will be valuable for the system as a whole. This is noticeable when you see that the alkalinity is reaching the lower end of the desired range and calcium is still stable. This generally only occurs when the aquarium is begging for a water change.

marine666 02-28-2010 09:27 AM

how big a water change should i do it's a 200ltr tank, i have a cuc in the tank 10 turbo snails and 5 red legged hermit crabs. Thanks for your help. :-)

Pasfur 02-28-2010 09:51 PM

10 to 15 gallons should be fine.

marine666 03-02-2010 07:34 PM

Sorry just some more question's

i'm running the aqua one marisys 240, do you think i should remove the biomedia or do you think i should get a external filter just for media like rowaphos and cardon seen one with a build in uv.

If i was to remove the bio filter do you think the 8kg of live sand and 15kg of live rock would cope with filtering the water.

i thinking of upgrading the skimmer anyway to a deltec mce 300 or 600, last thing is it possible to over skimmer your water and if so what are the effects.

Thanks for your help everyone :-)

Pasfur 03-03-2010 07:41 AM

Quote:

Originally Posted by marine666 (Post 336553)

i'm running the aqua one marisys 240, do you think i should remove the biomedia

I have reviewed the filter on the web site, but I can't get a feel for the water flow. Can you describe the order of water flow? (i.e skimmer, carbon, then trickle over biomedia) How does it flow?

Also, is the water forced into the skimmer, or can it bypass the skimmer directly for the biomedia?

No, I do not recommend a built in UV hang on filter unit. They are more expensive and less effective. Just buy a hang on UV.

marine666 03-03-2010 12:44 PM

it go's down the over flow box over through cotton pad's and carbon, on to the bioballs, then on to the ceramics then get's skimmed then pumped back up. but i think it is possible for water to bypass the skimmer.

flow rate is 900ltrs/hr which no doudt will be when the compartments are empty.

It was a external canister with a built it uv that i was thinking about getting, along with a deltec skimmer.

Thanks for all your help :-)

Pasfur 03-03-2010 10:21 PM

Quote:

Originally Posted by marine666 (Post 336973)
it go's down the over flow box over through cotton pad's and carbon, on to the bioballs, then on to the ceramics then get's skimmed then pumped back up. but i think it is possible for water to bypass the skimmer.

This is a ridiculous design. The skimmer is useless in this situation, because by the time the water reaches the skimmer the biological filter has already broken down the waste into Nitrate. The skimmer has no purpose at all in this setup. The flow should be exactly opposite of this, with all water entering the skimmer first. Is there any way to modify the unit so that the water flows differently?

Can you post some good pictures of the unit so that we can see the process? Perhaps removing a couple baffles and replacing them with appropriate baffles will allow you to redirect the water flow.

marine666 03-04-2010 06:24 PM

2 Attachment(s)
Hi, I got some flow pic drawings of the marisys 240 dont know if there are good enough for you to see.


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