At petco you can get a hydor 450 or 1-2 250 for a 20 gallon tank they are around $25 each.
Your tank will take a month or 2 to cycle. Then add a turbo snail and a few other snails a couple hermits. Wait a month add a fish wait a month add another. You'd probably max out at 3-4 fish.
2-clowns 1-goby sound great. Get a hydrometer or refractometer check your salinity every now and then watch for your water level dropping have some RO water to keep it topped off. Never go back to that store. They ripped you off!!!
Your tank will take a month or 2 to cycle. Then add a turbo snail and a few other snails a couple hermits. Wait a month add a fish wait a month add another. You'd probably max out at 3-4 fish.
2-clowns 1-goby sound great. Get a hydrometer or refractometer check your salinity every now and then watch for your water level dropping have some RO water to keep it topped off. Never go back to that store. They ripped you off!!!
Unfortunately, he learned his lesson the hard way and very quickly.

