out of over 5000 Species? not very likley. its a common hichiker, very hardy, spreads good at first but the white sponges tend not to last in established tanks, I'm not sure why the yellows, oranges, and purples tend to do better.
Originally Posted by Kevin34
Do sponges serve a purpose in a tank? Help keep the water clean? Anything at all?
they are filter feeders so if you have excess particles yes they will filter up to 5x their body weight in water per hour. they can serve the same pupose that cleaner clams to keeping nitrates low by removing and digesting the particles that can break down and cause nitrates. they for the most part eat plankton.
Originally Posted by The J.O.P.
do they die when they touch air? i read this somewhere.
most decorative species are sensitave to air and can die whe exposed to it. not all species are like that though (better safe than sorry when your paying 50$ for a sponge). lots of hitchiker style sponges create gemmules that can survive just about anything (think of a gemmule as a clone seed) thats why when we buy rock they just magically show up later.
I have had quite a few q-tip sponges that have come and gone in my tank and they never got very big. This sponge has been interesting that it is growing rapidly and is now almost two inches across and has lasted for some time now in the tank. My tank will be a year old in June.
Originally Posted by reefkprZ
they are filter feeders so if you have excess particles yes they will filter up to 5x their body weight in water per hour. they can serve the same pupose that cleaner clams to keeping nitrates low by removing and digesting the particles that can break down and cause nitrates. they for the most part eat plankton.
So will feather dusters do the same thing?
Originally Posted by ifirefight
I have got TONS of the white ones.
*S* well out of 5000 species there are bound to be a couple that are white. Often I hear about white sponges in startup tanks but people ask why they arent seeing them any more. Thats why I said usually. there is no gaurantee especially since I have no clue what species it is.
easily! rip off a piece or cut a piece off. (do this under water and keep it under water at all times). If you dont want to do it in your tank submerge a container to move the sponge into with out removing it from the water. its one of the fastest ways sponges spread.