Detailed form submitted: Barlan

Joined
29 Feb 2012
Posts
529
Reaction score
82
Location
Randburg, johannesburg
Detailed help request
Are you experiencing any problems in your tank?
Not Sure
Brief Description
apparently Diatom algae on tank glass and back wall.
nitrates are 15-30ppm, trying to drop them.
Tank size
40X33X40xm
System Volume
37 liters
How long has your tank been running?
6 weeks (from 26/03/2012)
What livestock do you have?
2 gold and black chromis
1 electric blue hermit
some bristle star fish and bristle worms, came with LR
Water Parameters
Alkalinity (dkh):8
Calcium: unknown
Phosphate:unknown
Magnesium:unknown
pH: 8.2 - 8.4
Nitrite:
Nitrate:15 - 30
Ammonia:
Salinity:1.020 - 1.024
Temperature:24 - 27 degrees
What lighting is over the tank?
2X 24W PL tube and 4 X 24W high power T5 tube
http://www.alibaba.com/product-gs/277487556/MAGIC_WAVE_MARINE_TANK.html
37 liter version
Pumps and equipment
venturi skimmer, Biological filter sponge ,microbial filter ceramic rings, seachem matrix bio media, bio balls. water pump
Maintenance
weekly water changes approx 30-40%.
vacuum substrate if weekly feeding was a bit excessive or fish not hungry.
wipe diatom off tank walls with clean sponge.
monthly: clean equip - skimmer, sponge.planning on cleaning water pump.
Other info and photo's.
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Hi Barlan.

i have seen a rise in diatoms lately, are you using RO water and which salt?

while your nitrates could cause some issues, we would need to know phosphates
 
Below are recommended water parameters that can be used as a guideline for general marine tanks.

pH - 8.2 to 8.4
Salinity - 1.023 to 1.026 (or 30.5 to 34.5 Specific Gravity (SG))

Calcium - 380-420
Alkalinity - 6 to 9 dKh (ideally 6.5 to 8.5 dKH) NSW levels
Magnesium - 1300 to 1350
Iodine - 0.04 to 0.06
Strontium - 8ppm or 8mg/l (NSW levels)
Potassium (K+) - 380-420
Nitrite - 0
Nitrate - less than 5
Phosphate - less than 0.01
Ammonia - 0
Ideal Water Parameters - Marine Aquariums of South Africa
What to test for and why - Marine Aquariums of South Africa
 
Last edited:
while correct, please note that those parameters are for reef tanks
 
Reef Tanks or Marine Tanks..?..Reef is usually refered to as SPS dominated Tanks..and I know they usually contain HIGH ALK..sometimes 9-11...as I've been corrected a few times when giving these "parameters"...I'm usually told that these are "basic" lower range and not "correct" if it's SPS Tanks as it then has to be on the "higher" scale of water parameters...:confused1:
 
in FOWLR most of the params arent a concern, hence for reef tanks
Reef is usually refered to as SPS dominated Tanks
reef tank is any tank with fish and inverts and/or corals[sps,lps,soft] etc
 
no he doesnt, or hasnt said so, i was just stating the difference but those are great links :thumbup:
 
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