Has anybody used polyfilter in their larvae/rearing tanks?
It removes pollutants/chemicals/odours. I'm particularly interested in using it for larvae stages when water changes are most problematic.
I have concerns that larvae could get trapped in it so have wrapped chunks of it in 100 micron mesh and am going to try it with mandarin larvae but am interested to hear people’s opinion/experience. The only possible problem I can think of is I have heard some of the labs have found high levels of boron when its been used, apparently to prevent it from removing other trace elements. Not sure if this would have any side effects on the development of larvae (or even if its true)?
Regards
James