Estimated amount(kg) of rock

[Alucard]

Does anyone know the estimate amount of rock to be used for a 4 feet tank?

Thanks.

[Seawater]

Does anyone know the estimate amount of rock to be used for a 4 feet tank?

Thanks.

Depending on your intend of your landscape and type of corals . guees you need about 60-100 kg of them.

Hope this information helps

[Alucard]

Depending on your intend of your landscape and type of corals . guees you need about 60-100 kg of them.

Hope this information helps

wow thats alot ...my landscape would be like abt 2/3 of the tank level height..thanks for the information. Is it cheaper to buy dead rocks as oppose to live rocks ?

[kelstorm]

wow thats alot ...my landscape would be like abt 2/3 of the tank level height..thanks for the information. Is it cheaper to buy dead rocks as oppose to live rocks ?

dead rocks can turn "live" once the bacteria recolonise it. Dead rocks can also be used as base rocks. as in whether dead rocks are cheaper than live rocks, it depends on the size. some big live rocks can weigh up to 20kg and it cost u $100 per piece. But the bigger the rock, the risk of having pest comes with it.

if u worried abt starting up with dead rocks and having no bacteria to colonise it. Those bacteria can be purchase off the shelves to help u to kick start or u can get some live sand to "seed" ur tank. You dun hv to worry abt algae die off problem, causing massive algae bloom.

Some reefers here uses artificial rocks. Those also dun hv bacteria colonising it.

The main thing is patience. If u can do a proper cycling of tank, ur dead rocks will eventually become live rocks. Otherwise, ur live rocks will die off, giving a rotten egg smell, and u find urself throwing good rocks and money away.

[Alucard]

dead rocks can turn "live" once the bacteria recolonise it. Dead rocks can also be used as base rocks. as in whether dead rocks are cheaper than live rocks, it depends on the size. some big live rocks can weigh up to 20kg and it cost u $100 per piece. But the bigger the rock, the risk of having pest comes with it.

if u worried abt starting up with dead rocks and having no bacteria to colonise it. Those bacteria can be purchase off the shelves to help u to kick start or u can get some live sand to "seed" ur tank. You dun hv to worry abt algae die off problem, causing massive algae bloom.

Some reefers here uses artificial rocks. Those also dun hv bacteria colonising it.

The main thing is patience. If u can do a proper cycling of tank, ur dead rocks will eventually become live rocks. Otherwise, ur live rocks will die off, giving a rotten egg smell, and u find urself throwing good rocks and money away.

whats the reason for having those good bacterias? is it for the fishes or corals? Does it mean i have to wait till those dead rocks turn live before adding nice corals and fishes?

What abt the live sand? Can ordinary sand be used for marine tank?

Thanks.

[kelstorm]

whats the reason for having those good bacterias? is it for the fishes or corals? Does it mean i have to wait till those dead rocks turn live before adding nice corals and fishes?

What abt the live sand? Can ordinary sand be used for marine tank?

Thanks.

The reason for the bacteria is to break down the ammonia and eventually converting them to nitrate. It is for the entire system. If you depends on those dead rocks as your only form of filtration aka Berlin method, yes, u hv to wait till the rocks turn live. However, most of us are employing a skimmer, sand bed, mechanical filtration together with the rocks for filtration.

Pls use only coral sand instead of river sand. coral sand comes in different grade #0, #1,#2, #3. Most ppl are using grade #1. #0 is those fine sand that u find along the beaches

[Alucard]

The reason for the bacteria is to break down the ammonia and eventually converting them to nitrate. It is for the entire system. If you depends on those dead rocks as your only form of filtration aka Berlin method, yes, u hv to wait till the rocks turn live. However, most of us are employing a skimmer, sand bed, mechanical filtration together with the rocks for filtration.

Pls use only coral sand instead of river sand. coral sand comes in different grade #0, #1,#2, #3. Most ppl are using grade #1. #0 is those fine sand that u find along the beaches

Thanks for the info. For the skimmer, what are the types involved and the price range?