I don’t know what’s going on with my tank PLEASE HELP!!

[newreeferr]

Agree with above, there is good advice there.

API tests are just for guiding, but not for success in the hobby.

You really need a powerhead in your tank ,trust me, the fish don't have trouble to swim in flow. Put a correct size powerhead in the tank and it won't be too much flow.

Stop dosing anything in your tank. Get better test kits before you make any changes, don't act based on API.

Buying water from the LFS is an issue, you don't know how often they clean or replace their filters. If you want long term success, need your own rodi machine and need to make your own salt.

"is only 13.5 gallon" doesn't matter, lots of us keep small nano tanks, in many ways, small tank is easier.

It’s premade saltwater not from my LFS it comes in a 5 gal box. Until now the waters done me good the whole time so I don’t think it’s that. And I would use a power head but like I said it blows stuff arounf in my tank like crazy I’ve tried many diff spots speed everything powerhead I even have is for nanos

 

[newreeferr]

I believe water movement and/or oxygenation is the key to your success here.
Vacuuming/disturbing the sand bed aggressively can also lead to toxic conditions in a tank that small so be careful if doing that.
Most of the api tests are hard to read and some just not very accurate.
Don't dose anything and don't use prime here it has no use.
Small tanks need small changes so go slow and monitor your creatures well being.
Get some quality test kits.
Do some small water changes to keep your parameters in line.
Keep it simple, get the tank in better shape using good,smart husbandry and then you can move to dosing.
Right now let's clean it up and keep it consistent.
Hopefully that helps.

Just put in a sicce 1000 posted a short on YouTube please tell me if this is too much flow. I’ve never had a power head so I have a lot of stuff floating around rn as it is clearing up a little

I believe water movement and/or oxygenation is the key to your success here.
Vacuuming/disturbing the sand bed aggressively can also lead to toxic conditions in a tank that small so be careful if doing that.
Most of the api tests are hard to read and some just not very accurate.
Don't dose anything and don't use prime here it has no use.
Small tanks need small changes so go slow and monitor your creatures well being.
Get some quality test kits.
Do some small water changes to keep your parameters in line.
Keep it simple, get the tank in better shape using good,smart husbandry and then you can move to dosing.
Right now let's clean it up and keep it consistent.
Hopefully that helps.

 

[00W]

Might be too much just have to monitor.
Sicce nano pumps are great. I have 2 little ones in my 20 and they are sweet.
Petco has them most of the time.