- Location
- East Northport 11731
IME the Tech M would only work if I kept up with manual removal. It seems like once its "trimmed" back a little, the tech m has a chance. If I were in your shoes, I would keep the mag where it is, dosing Tech M, and do manual removal daily. For that, I would set up a felt filter sock in the sump and siphon it all into that so your not constantly changing water. Just make sure you stop before the sock overflows! 
Give me a shout if you have any questions. Good luck!
Give me a shout if you have any questions. Good luck!



