I have a 34 gallon tank and debated going with a calcium reactor or dosing 2-part or kalk. Ultimately I decided to go with BRS 2-part. Rather than manually dosing daily which I think would wear me down and make me want to ultimately quit the hobby I decided to automate dosing.
Initially I looked at some of the DIY set-ups I've seen that leverageTom's aqualifter pumps. Given that I don't have a sump and I would be essentially pumping from the floor up several feet to the back of the tank I decided to go a different route. Next I looked at buying three individual well-made peristaltic pumps (BRS or Drew's) but when I added the up the cost of three pumps, plus a controller or three digital times, and tubing I would have been spending over $500! That's more than I paid for my entire Solana setup new - tank, stand, metal halide light, skimmer, return pumps. Ouch.
This led me to start looking at some the chinese imported dosing set-ups on Ebay. I looked around on the various reef forums and was pleased to see that people are having great luck with them! Here are the three that I'm currently looking at:
I'm sure others are in a similiar boat so I thought I'd share my research thus far. I'll let you all know which one I end up going with.
Note to admins: This is the second time I've typed this post up and posted it today. The first post mysteriously dissapeared. If my initial post got deleted or moved please let me know. I don't *think* I'm saying anything wrong here? Thanks.