chemistry

Opened container of BRS gfo.

Like it says in the title, I have a Hanna Phosphorus ULR kit HI736 for sale. $35 gets it shipped to your door. It comes with everything you see here. There is enough reagent to do 5 tests. (a new one only comes with 10). Paypal only. PM me for questions.

Hanna HI772 Alkalinity Checker. Includes reagent and test tubes. Everything works perfectly. Local pickup or will ship at buyer’s expense via Priority Mail. Payments vía PayPal (no FF, no Venmo, no Zelle)

Hanna HI758 Calcium Checker. About 10 packets left of reagent and half in the bottle. Includes mini pipette and test tube. Everything works perfectly. Local pickup or will ship at buyer’s expense via Priority Mail. Payments vía PayPal (no FF, no Venmo, no Zelle)

Hanna Phosphate Ultra Low Range Checker. Includes a new 25-pack of reagent and test tubes. Everything works perfectly. Local pickup or will ship at buyer’s expense via Priority Mail. Payments vía PayPal (no FF, no Venmo, no Zelle).

Only used this a few times, works perfectly. Asking $65 shipped incl. PP fees. Please PM if interested. Thanks!

$25 - Used Hanna Ph Checker Plus HI98100 - comes with everything in the picture, works great. free local pickup (77382) or flat shipping for $5. retails new for $45 + $14 for the storage solution.

I have a 6 month old under warranty Neptune Trident. With over a years worth of reagents. This is an awesome aquarium tester and is so easy to use. Currently because of the amount of reagents and the size of the trident I can’t feasibly ship it. I am going to Aquashella next week, so I could...

Selling a Hanna Copper HR Test kit + Brand new Copper HR Reagent. Asking $45 shipped.

SOLD

Hanna Alk checker with original case and two glass test tubes. No reagent. Works perfectly. $25 shipped to CONUS.

I have a brand new trident unopened plastic still on the box. I had already purchased another one before Neptune decided to ship me a new one as a replacement for a used one I purchased from a member here. This one I just received yesterday and it's not one I need and rather than it sit on the...

$350 KHGuardian Pro alkalinity monitoring with AIM (APEX integration) Will come with new pH probe and one pouch of reagent. Can also dose alk solution with included pump. SO much cheaper to run than all other alk monitoring devices. Can even DIY reagent. I have 2 of these for sale. Located in...

Hey Everyone I’ve got a new in box salinity probe for Neptune. I bought it but decided im not gonna use it. Comes with the salinity calibration fluid. 165 Shipped

Used Milwaukee Refractometer MA877 for sale. Works perfectly with calibration fluid and box (box is a little worn) $75.00 shipped

Tropic Marin pro salt $90 GHL 2.1 SA doser $200 Work great however you will need reprogram it after replug from power.

Used Milwaukee Refractometer MA871 for sale. Works perfectly with calibration fluid and box $100.00 shipped

Hi everyone so I left the hobby and I'm selling off the last of my testing equipment. I will NOT SEPARATE I have basically all the hanna testers -nitrate lr -nitrate hr -copper -alk (dkh) -phospate ulr ppm -ph I will also include a unopened 500 ml bottle of red sea coral nutrition ab+ and a...

Like new used once all reagents are good until 7/2025. I would prefer to sell locally but could ship for actual shipping costs.

BNIB Tropic Marin Professional Test Kit.

SOLD

Hello, I have three hanna checkers. The only one that doesn't have reagent is the Nitrate HR. Looking for 20 each, or 50 for all three. Shipping included. Thanks for looking.

Brand New Hanna LR Nitrate tester. Comes with everything pictured.

Tropic Marin Original Balling Set. Used only "1 Gallon Of Mix" Out Of It Which Is The Following Below In Bold. 95% Of The Box Left. I Changed Direction And Hate To See Them Go To Waste. Just Pay For Shipping. I'm In The Giving Spirit! Save Yourself Some Money, They Aren't Cheap! :) Needed For...