Are lava rocks used just like bio balls. Meaning water should trickle over them or are they submersed? and I know there are two or at least two types of biological filtration. Some to be trickled on and some can be submersed fully. Are these just two different methods or do they each do different types of bio filtering. Thanks guys
Lava Rocks?
- Thread starter unknownuza13
- Start date
unknownuza13 said:
They can be used just like bioballs, they can also be submersed, both ways work
cept with the wet dry the bacteria get their oxygen directly from the air instead of the water and the water trickling over them keeps the bacteria wet and feed with ammonia and nitrite from the inhabitants. wet-drys also oxygenate the water itself.
The Trust uses a wet-dry with lava rock, theirs a thread about it somewhere im not sure what forums its under, and i cant find it, lol.
yea i just got done reading it that is why I was asking, cause it seemed as though he had his submerged but in mine they will be trickled on...
I use lava rocks too. A 10 lb bag of lava rocks is $3.50 at home depot, bio balls cost...well just a little more.
one other thing- have some good mechanical filteration before it goes to the lava rock, keeps those pores open for those life saving bacteria 
and no build up of **** to cause a spike in nitrates.
and no build up of **** to cause a spike in nitrates.
Here's the thread you are looking for
http://www.monsterfishkeepers.com/forums/showthread.php?t=4134
http://www.monsterfishkeepers.com/forums/showthread.php?t=4134