Hi all,my friend gave me his live sand since he stopped with the hobby....and coincidently i found that in the live sand there are very tinny metal particles! these were found cause my glass cleaner magnet fell in the bucket and when i picked it there were tiny black particles with it!.....should i remove the sand that i already put in the refugium?
Hi all, I wish to have some opinions regards refugium set-up
also my skimmer works in 8 inc water level....is it a good setup refugium to have only 20cm of water level?
Currently i have a T5 light fixture with 4 T5 54 watts each.
soon i need to replace the bulbs....can someone tell me what is the best combination (as in light colour and wavelength) to have for the new bulbs?