I got a 20G hex at a garage sale so I decided to make a seahorse setup, something I wanted to do for a long time. I asked my LFS to get me one of those hex under gravel filters and I was in business. I have since learned that they have fallen somewhat out of favor, and that 20G is on the small side for a seahorse tank. No matter, it looks nice and I have a garage full of larger, empty aquaria, just not hex-shaped. I did remove the wimpy 8W fluorescent tube and retroft a 13W PC setup. Much brighter!
Inside the tank before substrate
Here's the tank as it appears today:
I'm using a cheap HOTB (Rio!) skimmer for some skimming. I plan to do generous water changes from my 240G system, so I'm not too concerned about water quality. It does skim, amazingly. I removed the existing heater so the horses wouldn't burn their tails, but then found the tank was dropping to around 66F. I have added a reptile heater to the bottom of the tank and now it's maintaining 72F. When it warms up outside I will just unplug it.
The macroalgae is Caulerpa Prolifera and Halymenia (Dragon's Breath) . There's a blue leg hermit, and a couple of hitchhikers from my big tank came over on the live rock. Experimentally I added a frag of Pocillopora and one of Montipora Hirstuta, the corals I can't even kill on purpose in my big reef.
Seahorses are coming tomorrow, a pair of CB Hippocampus Erectus!
Inside the tank before substrate

Here's the tank as it appears today:

I'm using a cheap HOTB (Rio!) skimmer for some skimming. I plan to do generous water changes from my 240G system, so I'm not too concerned about water quality. It does skim, amazingly. I removed the existing heater so the horses wouldn't burn their tails, but then found the tank was dropping to around 66F. I have added a reptile heater to the bottom of the tank and now it's maintaining 72F. When it warms up outside I will just unplug it.
The macroalgae is Caulerpa Prolifera and Halymenia (Dragon's Breath) . There's a blue leg hermit, and a couple of hitchhikers from my big tank came over on the live rock. Experimentally I added a frag of Pocillopora and one of Montipora Hirstuta, the corals I can't even kill on purpose in my big reef.
Seahorses are coming tomorrow, a pair of CB Hippocampus Erectus!
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