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Bioballs are mediums for nitrifying bacterias to host thus you are experiencing good NO2 reading. However, the by-products of nitrifications is NO3 that's why you are getting high NO3. It got nothing to do with your bioballs but rather the lacking in de-nitrication, that is you need to address your NO3 by having de-nitrification. De-nitrification happens in anaerobic condition. There are existing some anaerobic activities going on in your tank however, it may not be sufficient as seen in your current readings. You can reduce your NO3 with the following: Deep Sand Bed Carbon Base De-Nitrator Sulphur Base De-Nitrator NP Pellets Algae Filtration (Absorption) Chemical Precipitation (AZNO3 etc) Live Rocks (Large Pieces with anaerobic zones) Removing Bioballs will reduce NO3 but will also reduce the nitrification abilities of your tank thus you may experience a slow climb of NO2 after the removal. Our tank need nitrification and de-nitrification process in order to complete nitrogen cycle (Ammonia > Nitrite > Nitrate > Nitrogen). Hope that helps.

if you remove all your bioballs at once and it is your main source of bio filtration, your tank will crash. What are you going to replace your bioballs with? Your system still needs place for bacteria to colonize. If you are intending to use other media, I recommend you change them over the course of 4 weeks, 1/4 every week and to dose bacteria every week. (just to be kiasu) Don't assume that your high nitrates are caused by bioballs. What's your tank's bioload? Do you have alot of fishes? What's your feeding regime? Advice: Don't try to fix something that's working. But if you're trying to improve your system, find the root cause first, and treat it gradually.

hi , so where is am or the paya lebar address? i will rush down which one is near my home, i staying @ bedok, hope that guy call pull through tonite n may give it away, my 2ft tank is cycling, 3 days old, and cant put that poor fellow in.

http://reefkeeping.com/joomla/index.php/cu...eefkeeping-101- There is an interesting write-up on using chilled seawater to remove pests like flatworms.

LR had been given to me, returning the favour, giving away to those who needs it 4 small LR 1 big and flat LR 1 tonga branch collection only at my place in Bishan

When LPS start showing their skeleton, it's definitely not a good sign. Be prepared for the worst. Lots of potential causes. could be that you've handled it recently. corals don;t like to be handled and moved.

1) Bioballs will only leach NO3 back into the tank if detritus is trapped in them and when the detritus decomposes, then No2 and No3 may be leached into your tank. 2) Sulphur denitrator will help in reducing the NO3 but this will be a long process. Do not expect miracles and hope that the sulphur denitrator will being your NO3 levels down immediately. If you want a faster effect, do a 50% water change and then use AZ NO3/Prodibio Bio Clean to reduce the NO3 levels. 3) If your corals do not show signs of stress, then you may want to monitor them. High NO3 levels do not affect the corals immediately. For SPS, iit is recommended that the NO3 levels be kept within 5ppm.

TLF products spotted at Iwarna. Check out Coral Revive, only limited bottles. Two Little Fishies ReVive Coral Cleaner™ is a new product developed by Julian Sprung for cleansing live stony corals. It is a surface cleaning formula based on plant extracts. Use for all general purpose live coral cleansing, as a part of acclimation to aquariums when corals are first received, for rinsing prior to shipping, and for rinsing newly fragmented corals, such as at coral farming facilities. 500 ml (16.8 fl oz) bottle.

Peter: pls state the number of bottles you have for sale or we will regard this as commercial posting. we will appreciate if you revert back to us within the next 24hrs or we have to suspend the sales as commercial sales. Thanks.

Upz