I知 currently upgrading my 10 gallon planted to a 20 gallon long tank. I got the new 20 gallon last night and today I bought a large piece of driftwood and a nice selection of low light plants at my LFS to fill it out. Substrate will be mostly gravel with perhaps a small section of regular play sand. The tank will get some sun from a south-facing window and I also want to experiment with LED lights.
I知 trying to decide how I want to stock it. I will be moving one endler, two platys and a newly acquired clown pleco into the 20 gallon. Also, I have one harlequin rasbora that I can either return to my LFS or keep him and add 5 more? I have 3 guppy fry (about a month old) in another tank that I could also put in the new 20 eventually.
Out of the tap my water has a ph of 8.2 and about 8.0 in my tanks. The LFS owner described our local water as medium to medium hard.
Will I be fully stocked if I do add the 5 Harlequins? Could I still add say 4 or 5 dwarf cories or 3 Otos (after I have some algae growing)? I壇 also like to leave room for a couple sparkling gouramis or scarlet badis if I could ever find them locally, although I知 uncertain if either of these would be appropriate with my current fish. I have some cherry shrimp in a 2.5 gallon that I壇 like to add in also, but they are so small that I知 afraid they may just end up getting eaten.
Any input would be appreciated, including other suggestions of different fish.