Growstones in Aquaculture

Tilapia grown for 8 weeks in closed recirculating aquaculture system using recycled foam glass - Growstones - as a biofilter. Water quality was monitored weekly for NH4, NH3, D.O., TSS, pH and temperature. Water quality in systems using Growstones filled biofilter was similar as systems using bioballs.

Category:

Education

Tags:

• Growstone
• Growstones
• Biofilter
• Aquaculture
• Tilapia

[pribadiw]

how much is the complete system for one tank?

did the growstones need to be replaced after a certain period? I've seen filter media made of plastic, which one is more efficient?

[gipsiest]

1.25 ft3 of media for each system. Same volume was used in systemsbiofilters with recycled glass and bioballs.

During the 8 weeks neither the media was replaced. Just stirred weekly to facilitate water flow through. So far we think they are equally effcient, but Growsotnes (recylceld glass media) could be used in smaller volume and maintain efficiency, as its surface area to volume ratio is significantly higher than bioballs (plastic).

[pribadiw]

is that 8 weeks old tilapia? wow, it very grow fast! how is it weight?

[gipsiest]

Hi pribadiw,

Yes, the fish shown in the video I posted was about 300 grams after 8 weeks. It grew in the tank shown. The system was associated with a biofilter filled with recycled glass, Growstones, which is an aggregate media made from recycled glass. This is a highly porous material with a very large surface area. It seemed to work just as well as the bioballs with the advantage of being less expensice.

[oggmttkmbbms]

@greenfish13 hi dumbarse, like I said, without an ANOXIC zone you wont get NH4+ , so then where is the anoxic zone that your plants are THRIVING on ??? The bacteria that produce NH4+ are not NITRIFYING they are DE-NITRIFYING. Nitrifying bacteria produce NH3- fromNO2, as for 10 fucken Talapia, we grow 3 tonnes of fish per week, so stick you fish bowl up your arse before commenting on shit you dont know. CABBAGE.

[greenfish13]

@oggmttkmbbms douche in any aquatic environment these nitrifying bacteria are required for a system to exist. The plants consume the less toxic NH4+, the very fact that the plants are thriving is evidenced by this. For the past year I have been growing 10 tilapia in an aquaponics system. If the waste these fish make was not being converted to NH4+ they would all be dead. So who gives a fuck I do and so does any other grower involved with aquaponics for their plate or for a living.

[oggmttkmbbms]

@greenfish13 so king, where is the anoxic zone as required to de-nitrify ?

As N02 and NH3 - are both harmful to fish and plants , the attain the required less harmful NH4+ it needs an anoxic zone, or dont the sellers worry about this as long as its out the door who gives a fuck , Right ????

[greenfish13]

@oggmttkmbbms if aquaponics is a myth then you are a douche and I am the king of england.

[oggmttkmbbms]

@MilesB1975 aquaponics is a myth

[greenfish13]

Oreochromis mossambicus?

[ScopedOUT2]

why?

[MilesB1975]

Yeah, Tilapia are a prohibited species in Australia, we tend to use silver perch , barramundi for aquaponics.

[plutosunshine]

i think thats illegal here

[2bornot2b1984]

Put him back in the water