hi,wow..that is a long time for a first post

lots of sumps are being made with built in holders,2nd apex has a much smaller magnetic holder,and officially
welcome to the reef going to love it here!!
lots of fun/info/fun/help/fun....
lol, I actually use to post on RC, and before that reefs.org, started this hobby in 2004, took a break in 2008, started a pico tank in 2014, stopped a year later, then just as of August 2020, started a JBJ Nano Cube, no hood, with a LED fixture hanging over it. Also hooked up with an Apex, hence the topic du jour. (I know right, an Apex on a JBJ) I got the JBJ for free. I always wanted an Apex.
I've lurked the aquarium blogs for years though and watched R2R grow at a distance.
Welcome ...
Well I’m not paying $40 for a genuine NEptune probe holder ...besides that temp probe fits nothing
I actually purchased an Apex probe holder, I give it a 3.5/5 . It needs to slim down a bit, and the magnet needs to be increased to the quality that of like a Tunze powerhead magnet. I am actually purchasing these guys to replace them.
This is a magnetic probe holder for two probes. The holes are big enough to fit regular pH, ORP or other probes along with the thick Neptune Apex temperature probes. The magnets are pre-coated resin neodymium N50 high strength magnets capable of holding on less than 1/2" glass (1/2" will...
www.ebay.com
I know that thick temp probe won't fit, but I have another idea for it. These give me a lot more space in my AIO sump area.
My sump came with probe holders so I use them! Previous tank I used the Neptune probe holder and loved it.
I like that option, if I had a sump. I am using a JBJ 28gal AIO. So very limited for space.
My problem/solution:
Apex Salinity Probe, which I know is very sensitive to bubbles, or if you look at it wrong. So I was thinking about making some type of fluidized in-line probe holder which would limit some variables to inaccurate readings. I could even have all the probes completely remote and isolated that way.
Why don't more people use in-line probe holders? Seems like it would be more common.