Saltwater Heating & Lighting

We are new to having aquariums, we really didn't realize so many things played a factor with the water. We currently have a 10 gallon tank but want to increase to a 29 gallon tank. We currently buy gallons of water but with the 29 gallon tank we really don't want to have to do that. We have well water with a salt filter. My levels from to tap was nitrate 10, nitrite 0, hardness 0, chlorine 0, alk 100, ph 7.. is my tap water safe even with the salt filter.

If I make water for salt water fish, about how much sea salt I need to put in water? And does the sea salt must be cleared

What if you only have freshwater or saltwater what’s more needed

I cannot afford a filter for my baby RESs but i have a big tank and a rock for them to get sunlight.Sometimes there is no sunlight for a long period so I bought a LED lamp for them.However during this month both my baby RESs stopped eating their pellets,have swollen eyes and white patches on shell and is suddenly so afraid of me.Before whenever I put down my finger to feed them they would rush over.I would like to know what is happening to them?Could u recommend stuff I could do(I’m a teen)

How much greens should I feed my red eared slider with pyramiding and soft shell at a time.Should I feed both pellets and greens together in a day?Which heat lamp brand do you recommend and how many watts should I buy if the lamp is 21 cm away from the dock?

Is it suitable to make a 1 feet marine tank. What fish should i keep in it?

I feel like Ash isn’t getting enough heat. What type of heating should I use?

What kind of lighting does a red eared slider need, I tried to look it up online but I get confused with all the types of lights... Please help!!!!!!!

Can I dry dock my red eared slider in a little container with no water and UVB or heat light provided and turn back the UVB light when I put her back on to the actual tank?Also I only have a UVB Light.Is it necessary to get a heat lamp or any other lamps for Cooper?Please answer all the questions.Thanks.

Whats a low cost treatment for my infected fish with ich that already have the white spots on them

My fish tank LED light broke. Is using an LED flashlight safe for the fish?

I got a lED fish light for my fish tank and I only got one light for one side so far and where the light is its growing a brown algae really bad and the other side without the light isn't. Do certain lights cause algae. If so, what lights don't and what type of lighting is the best? I have two filters in my tank and it's only one side so I dont think it would be anything else