I have had H. Magnifica's before. I had a huge one for about 5 years, then I moved and had to sell it. I have Cipro on hand and a QT tank if needed. Right now the mouth is tight and it is super sticky. It is also under a Mars Aqua LED. I do have a 250w MH if it seems to need more light. Purple base and purple tips...It's going to be a beauty for sure. Percs are checking it out already. They refused to host a Bubble lol. They knew if they held out long enough I would cave, lol.
(I also had a carpet (gig) that was a tiny 3 inches when I got it and it is now over a foot. I sold it at the same time as the previous Mag. Both are still alive and thriving today in my friends tanks)