Dwarf Pipefish tank set up question

[Draco]

So for the past 8 months or so I've had dwarf seahorses and Pipefish. I've been unsuccessful with the seahorses, they've slowly died one by one and I have no idea why. I've fed freshly hatched artemis shrimp daily, cleaned the tank weekly etc.

 

So down to one pony, and 4 dwarf pipefish which are doing really well, I want to make the tank look nicer.

 

Right now there's just fake plants. No sand, nothing but fake plants.

 

Can I add some rocks? I can pull rocks from my existing reef tanks, but I am not sure if it would be dangerous for them if it kicks into cycle? Or would I have issues with hydroids? Should I keep the fake plants?

 

I was considering getting some sexy shrimps and/or clown gobies and I want more than just fake plants.

 

any advice?

[seabass]

I'm certainly no expert, but here goes:

• The fake plants are OK.
• Your existing rocks shouldn't cause an ammonia spike.
• Vibrio and hydroids can be problems for seahorses.
• Feed twice daily.