Filtering Aiptasia Spores When Tranfering Old Tank Saltwater

[Sps Dream]

Hello everone,
I will change my aquarium size with smaller one and i want to use my old tank saltwater.
I would like to know is there any oppurtunity ( filtering system ) to get old water without aiptasia spores. Maybe small micron filter bags 2 or 3 inside each others.
Thank you very much.

[thegrun]

A UV light would work at the proper flow rate. I don't think there is a sock filter readily available that would catch anything as small as spores and if there was it would clog immediately.

[kbacon]

Coffee filter should work

[bnumair]

like advised above, uv is the best bet.

[Sps Dream]

Thank you for your answers.

[thegrun]

I don't see a coffee filter being fine enough to catch spores. You are looking at spores in the range of 5 microns, so even a 100 micron filter sock is not going to catch them.

[MinnFish]

Why risk? Just replace with new batch of RO/DI salt mixed water.