I was at a LFS and they ad several Multi's for 10.95 each. I could not believe the price. The manager was not there was going to get some additional info on them. I paid I think about $30 for mine back in the 90's. I started to buy a few of them but I'm at the end of a cycling in my 46 gal tank and was going to wait perhaps a week just to make sure everything was stable. I guess my question is. Is that a very good deal? My main concern is its a planted tank and planning on keeping the PH around 7.0. Thanks for additional input.