Hydor Freshwater Sand, Gravel, & Substrates

How to do clean water which fill in aquarium if doesn't have water conditioner?

My 55 gallon fish tank has hard water how do i clean it out that won't harm fish?

how do I change the ammonia, nitrates in my aquiarium

Can use mineral water for aquarium. My tap water has lot of heavy metals. I have 10 galloon tank with 4 guppy 4 danio 1 silver dollar. 1silver dollar and 1 pleco died bcoz of 2 gold fish earlier in my tank. So i decided to use RO water. Can i use.

Hello, I bought 3 fish (2 cichlids and 1 ray) and an aquarium (90 litres) yesterday. I prepared the aquarium and put the fish inside. However there is a power shortage at the moment. The temperature of the water is fine but what can I do to increase the oxygen level?

What do hermit crabs drink? Can they have bottled water, distilled water, spring water, or tap water?

can saltwater hermit crabs live with out water

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.

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

I have a pond in with my water dragon with a activated carbon filter. Is it safe for him to drink? I also used a water conditioner from petco. He is very lethargic and not eating.

Humidity in my hermit crab cage is too low, I cannot get a lid for it right now (too much money) is there anything at home I can use to cover it? (Plastic wrap with some air holes, anything)?

My Powder Blue Dwarf Gourami, Is twiching and i really don't know what to do i think its ammonia.