Saltwater concern: Nitrate won't lower

[PSU21Reef]

agree completely. all of these fish need a 75 or larger and they're very messy eaters. not to mention puffers and triggers will tear up lionfish sooner or later. I'd recommend getting a bigger tank and getting rid of the lion.

4 Triggers
1 puffer
and 1 lion

Thats 6 fish that should all have larger tank than a 55 gallon themselves. I think you know the problem and it's very obvious. The reason the nitrate isn't coming down is because your test can only read to 70. Its probably well over the 100's. Why would you ever let it get that bad?

 

[FLESHY]

agree completely. all of these fish need a 75 or larger and they're very messy eaters. not to mention puffers and triggers will tear up lionfish sooner or later. I'd recommend getting a bigger tank and getting rid of the lion.

+1