Just got a 20H and a Aquaclear 30...

[Byron]

I've been using API liquid test kits for 20 years. I won't argue that Sera may be better, but the API do the job. I've never had trouble reading some of the colours.

 

[Rocky998]

I've been using API liquid test kits for 20 years. I won't argue that Sera may be better, but the API do the job. I've never had trouble reading some of the colours.

If I spoke in a different language the sera test kit would be great... It fits my price range and has good reviews but its all in another language...

 

[sgropp311]

Well... too large for your tank

That all depends on your water parameters : KH, GH, pH.
Betta does much more better alone. Whatever some may say, Betta is not a community fish.

Dwarf gouramis may fit your tank if densely planted including floating plants : dwarf gouramis are very shy.

so i disagree with the betta fact. bettas do really well with other fish in my experience. In fact, not a single one of my bettas lives alone. They do well with schooling fish which makes a really cool effect of the betta being the centerpiece, i like putting them with neon tetras. If you’re putting them in a tall tank, i’d do a short fin betta because a longfin may have trouble swimming. KGTropicals has a lot of videos on betta tank mates, and they are VERY honest with what will on won’t work.

 

[Avel1896]

so i disagree with the betta fact. bettas do really well with other fish in my experience. In fact, not a single one of my bettas lives alone. They do well with schooling fish which makes a really cool effect of the betta being the centerpiece, i like putting them with neon tetras. If you’re putting them in a tall tank, i’d do a short fin betta because a longfin may have trouble swimming. KGTropicals has a lot of videos on betta tank mates, and they are VERY honest with what will on won’t work.

To each his own experience