Am I on the right track?

[AamaCrab]

Hi....Thanks in advance for your help!

I did a fish in cycle with 2ea Clowns and 1ea clown goby in my 38gal. It's been 4 weeks since I started my tank this was the results.
After the 1st week I had a spike in Ammonia and Nitrate so I did a 25% water change.
After the second week the levels were still high so I did another 25% water change.
After the 3rd week the levels were going down so I did a a 50% water change.
When i tested the water yesterday this was the results.

Ammonia 0
Nitrate 0
Nitrite 0
pH around 8

Is it safe to say my tank has cycled?

This is my setup:
38gal
1" sand bed (not live)
20lbs rock (not live)
2 powerheads
HOB 400 filter

Thanks Again!

 

[Coraloliseffect]

If your not developing nitrates nh3 you don't have a cycle.

This is why they call it cycled
Nitrogen cycle - Wikipedia, the free encyclopedia

Recommend the book beginner to breeder. Available at local big box pet stores and lfs etc.

As it sounds like you have fish in the tank. Recommend you add instant-ocean biospira or dr Tim's one and only ASAP. Ammonia and nitrites are very toxic to fish.

These two additives add live nitrifying bacteria. For a almost instant cycle. Both developed by same guy. The one and only is supposedly a improved variant. They both work.

Also a small peice of seed live rock. Will bring good bio diversity to balance the tank.

 

[Steveowhits]

Here is a little more "dumb downed" version of the Nitrogen cycle in a reef tank…. What is the Nitrogen (Cycle) Cycling Process? - The Nitrogen Cycle in a Marine Saltwater Aquarium

 

[Reefing Madness]

If you used Fully Cured Live Rock, then and only then would I say its safe to say your cycled.