Welcome to TFF
Since you are in the very early stages with the tank, I would empty, clean everything in hot tap water, and start over
You don't need fancy bio-starters and such. What you DO need, first and foremost, is a
good test kit. Many of us use this one, with excellent results:
https://apifishcare.com/product/freshwater-master-test-kit
If you are using tap water, you will also need a
good quality water conditioner, Seachem Prime, or API Tap Water conditioner.
Most importantly, read and understand the
cycling sticky provided above, and post any questions about cycling you may have here.
When you mention "cold" water, just how cold will it be? You'd have MUCH more options fish-wise in a heated tank; heaters are not overly expensive, or difficult to use.
Good luck, and welcome to the hobb
Welcome to TFF
Since you are in the very early stages with the tank, I would empty, clean everything in hot tap water, and start over
You don't need fancy bio-starters and such. What you DO need, first and foremost, is a
good test kit. Many of us use this one, with excellent results:
https://apifishcare.com/product/freshwater-master-test-kit
If you are using tap water, you will also need a
good quality water conditioner, Seachem Prime, or API Tap Water conditioner.
Most importantly, read and understand the
cycling sticky provided above, and post any questions about cycling you may have here.
When you mention "cold" water, just how cold will it be? You'd have MUCH more options fish-wise in a heated tank; heaters are not overly expensive, or difficult to use.
Good luck, and welcome to the hobby.
thanks again for the advice. I think I will empty it a start again. Looking at the other comments aswell I think I messed up with the gravel as the water wasn’t that bad prior to adding gravel. Il definately get the test kits and research the cycle process further.