Top Shelf Aquatics
Top Shelf Aquatics


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Good afternoon, Reef2Reefers!! We're excited to team up with @Hanna Instruments to bring you another awesome giveaway!!

Hanna Instruments cares about the success of your saltwater aquarium! It's been said that saltwater aquarium keepers are not keepers of coral or fish but rather keepers of water! That's why Hanna not only cares about you but cares about your water! Hanna Instruments has a history of developing innovative products that make analytical measurements easier to perform at an affordable price. Many innovations introduced by Hanna are now the norm for the instrumentation industry.

Hanna is giving away their new Marine Monitor (which continuously monitors pH, salinity, and temperature) to 3 lucky winners on Reef2Reef!! It's super easy to enter, and with 3 winners, you've got some great odds!!

So get entered to win NOW and this brand new monitor could be yours!!


Contestants will have to complete the "official entry" to be entered into this contest. By completing all entries you will increase your chances of winning.

Official Entry: Join the Hanna blog/email list by signing up HERE and create a post in this thread stating that you are entered.

BONUS ENTRIES (You may only do these AFTER your initial entry...winning entry will be verified for original entry)

*Make a separate post in this thread after completing any of the bonus entries. Winning entry is subject to verification.

1. FOLLOW the Hanna Instagram Page Here
2. LIKE the Hanna Facebook Page Here.
3. Share this contest on social media (can be any social media platform you like). Use these hashtags: #Reef2Reef #HannaInstruments #GIVEAWAY. 1 entry per social media platform.
4. Make a post in your build thread with your latest water parameter measurements (any of these parameters count: pH, Salinity, Temperature) and include what you measured them with. (If you don't have a tank thread then start a new one here: Member Tanks.) You may do this once a week for extra entries.

BONUS ENTRY FOR R2R SUPPORTING & PARTNER MEMBERS: This is an entry option that is only available if you are a Reef2Reef Supporting or Partner Member. If you are a supporting/partner member please make a post in this thread stating that you are a R2R supporter/partner. If you're not a supporting member, but would like more info on how to sign up, CLICK HERE.

3 lucky reefers will win the new Hanna Marine Monitor


Perfect for saltwater applications. This vertical mount unit can be used to continuously monitor at-home saltwater aquariums and reef tanks, public aquariums, saltwater mixing stations, and marine aquaculture facilities.

Keep your saltwater in check with our Marine Monitor (HI981520):
  • Quick at-a-glance readings for pH, salinity, and temperature
  • Easy-to-use and maintain with simple navigation
  • Built-in alarms alert you when parameters are out of range

Convenient and User-Friendly​

Equipped with a simple user interface. Results are displayed on a large, easy to read LCD screen. Users can choose their desired units for salinity (ppt, PSU, Specific Gravity (S.G.) and temperature (C° or F°).

Two Alarm Operating Modes​

A high/low value can be configured for each parameter.

High/Low Alarm​

Users can be alerted when a measured reading exceeds or drops below the set high/low value.

Visual and Audible Notifications​

Displays warning messages and a sound signal is generated when an alarm is triggered. This notifies you when readings are outside of supported ranges.

pH Electrode (HI1286)​

Supplied with a pH double junction electrode with a PEI resin body. This makes the pH electrode resistant to many aggressive chemicals. It is also easy to clean and less susceptible to clogging for fast and stable pH readings.

Fixed EC & Temperature Probe​

Attached to the monitor, this two-electrode conductivity probe features a built-in temperature sensor at the tip of the EC sensor. This allows for rapid and accurate salinity and temperature readings.

Extended Cable Length​

Each probe features a 2 m (6.6’) cable length for extended distances between the monitor and the saltwater sample.

Drawing of the Prize and Notification of Winnings

Entries accepted through February 26, 2023. The winner will be chosen by random draw and announced on February 27, 2023.

At the end of the contest we will choose the winners via a random number generator. The winners' usernames will be tagged in the winning announcement. We will not email, pm, or contact the winners other than tagging the winning name. Be sure to check back to claim your prize. If it is not claimed within 3 days we will do a re-pick and so on until the prize is claimed.

Thanks again to Hanna Instruments!
I've signed up!!


It's just me
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Nov 22, 2019
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Nutramar Foods
World Wide Corals

Coral canvases: Do you try to emphasize angles and textures in your photos?

  • I always try to emphasize angles and texture in my photographs.

    Votes: 21 21.6%
  • I sometimes focus on angles and textures in my photographs.

    Votes: 24 24.7%
  • I just point and shoot.

    Votes: 43 44.3%
  • I don’t take pictures of my tank.

    Votes: 8 8.2%
  • Other.

    Votes: 1 1.0%