View Full Version : Dirty Sand

01/30/2008, 06:43 PM
How much flow do you have?

I have 1850 gallons per hour in my 75 gallon tank = 24.6 turnover an hour.
(This does not count my sump return, with that I would be like 30 x an hour)

Why do I still have brown areas?

I tried repositioning my heads but I just get sand craters and sand drifts and the rest stays brown.

Any ideas? Do I need more cleanup crew? Some Nassarius Snails?

Cleaning Crew:

12 red legged hermits
4 turbos
12 Astrea snails
1 sand shifting star
1 lawnmower goby
1 cleaner shrimp
1 fire shrimp

Some websites say I should have:

20 x Turban Snails
15 x Nassarius Snails
30 x Cerith Snails
25 Hermits

01/30/2008, 06:50 PM
I may be way off base here but I will try anyway. How old is the tank? I think it is virtually impossible to remove all the dead areas. Your gonna have to turkey bast some areas. On another note I would remove the sand shifting star. They are copepod eaters and could make your goby go real hungry.


01/31/2008, 08:13 AM
3.5 months. I think I need more movers (cleanup crew) over the sand?

01/31/2008, 08:44 PM
I think you need to be patient through this. Your tank is just going thru a natural cycle. I say ditch the starfish and the turbo snails...they are bulldozers and will know everything in your tank over. Maybe exchange them for 20 more smaller snails.


01/31/2008, 08:59 PM
Over time this should get better. In the mean time, some nassarius snails would be good. Even better IMO would be some cerith snails. They are all over the place and eat both algae and detritus (even diatoms). Your hermits might kill them if there are not enough empty shells around (or just because they are crabs... cerith shells are highly prized by hermits).

BTW, personally I don't mind some hills and valleys in my tank.

01/31/2008, 09:03 PM
Oh, one more thing... Forget about those sites that suggest so many snails, etc. Just let your tank dictate what you need. You will need less later so why start with so many?

01/31/2008, 09:25 PM
sorry... double post

02/01/2008, 06:52 AM
It's hard to beat a sleeper goby for a squeaky clean sand surface.